topic: Rivers

topic: Rivers

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Indigenous communities along Argentina’s Río Chubut mobilize to conserve waterway
- A caravan of Indigenous Mapuche activists recently concluded an 847-km (526-mi) trek down Argentina’s Chubut River, meeting with communities along the way to raise awareness of the issues they face along the shared waterway.
- From each trawün, or gathering, they determined that Indigenous access to land and water is diminishing, that large-scale projects on their lands are going ahead without their prior informed consent, and that Mapuche communities need a unified stance toward state decisions.
- Huge swaths of land along the river have been bought up by private interests, including foreign millionaires, cutting off access for the Mapuche to the Chubut that they consider not just a physical resource but a spiritual entity.
- The Mapuche are also concerned about policy changes under Argentina’s new libertarian administration, which has already kicked off a massive deregulation spree and could lift a ban on open-pit mining in the region.

Meet the 2024 Goldman Environmental Prize Winners
- This year marks the 35th anniversary of the prestigious Goldman Environmental Prize, which honors one grassroots activist from each of the six inhabited continents.
- The 2023 prize winners are Alok Shukla from India, Andrea Vidaurre from the U.S., Marcel Gomes from Brazil, Murrawah Maroochy Johnson from Australia, Teresa Vicente from Spain, and Nonhle Mbuthuma and Sinegugu Zukulu from South Africa.

Latest Peruvian oil spill cuts Indigenous communities from life-giving river
- On March 5, a collision between two oil barges in the Peruvian Amazon led to an oil spill in the Puinahua River, near Pacaya-Samiria National Reserve, a protected region of rainforest.
- Since the spill, local Indigenous communities, who almost exclusively depend on the river for their livelihoods, have been unable to collect water or fish due to fear of contamination.
- The impacted communities are awaiting compensation for their losses, yet face a deadlock as environmental assessments, which could take weeks, must be conducted first before payments are made.
- The ecological, economic and social impacts of the oil spill have not yet been published; for decades, the Peruvian Amazon has been subjected to hundreds of oil spills and leaks, which experts say have wreaked havoc on the basin.

Bangladesh uses satellite transmitters on saltwater crocodiles in Asia’s first
- On March 13, the Bangladesh forest department tagged satellite transmitters on two saltwater crocodiles for the first time in Asia and released them in the Sundarbans waters.
- So far, four saltwater crocodiles — three from captivity and one from the wild — have been tagged and the preparation is in place to tag more.
- The forest department has already started collecting data using the satellite transmitters to understand the crocodile’s habits in this ecosystem and identify nesting its hotspots, ecology, mortality rate and habitat range.
- Experts say the satellite data will play an important role in crocodile conservation in Bangladesh, where the species is critically endangered, and will help the authorities make proper conservation management plans to protect it.

Indigenous efforts to save Peru’s Marañon River could spell trouble for big oil
- In March, the Federation of Kukama Indigenous Women in the Parinari district of Loreto won a lawsuit against the oil company Petroperú and the Peruvian government, protecting the Marañon River from oil pollution.
- Since the 1970s, the exploration of oil reserves in the Peruvian Amazon has resulted in hundreds of oil leaks and spills, compromising the health of Indigenous communities.
- While the defendants have already appealed the decision, a favorable ruling in higher courts could force oil and gas companies to answer for decades of pollution in the Peruvian Amazon.

Sumatra villages count cost of deadly river tsunami swelled by illegal logging
- Several days of extreme rainfall beginning March 7 triggered fatal flash flooding across Indonesia’s West Sumatra province, resulting in at least 30 deaths and devastating villages on the fringe of Kerinci Seblat National Park.
- Deforestation upstream of the affected areas has exacerbated the risk of landslides and flash floods, according to officials.
- The Indonesian Forum for the Environment, a national civil society organization, called for government action to address illegal logging and land management practices to prevent future disasters.

Amazon prosecutors get sharper impact tool to charge illegal gold dealers
- New research from the NGO Conservation Strategy fund, working with federal prosecutors in Brazil, has refined a tool that puts a dollar value on the socioenvironmental costs of illegal gold mining across vital ecosystems in the Amazon.
- Brazilian environmental investigators and prosecutors say the updated Mining Impacts Calculator is improving cases they’re bringing against the largest buyers of illegal gold in the country.
- Each kilogram of gold of artisanal mining causes damage valued at up to $389,200, more than twice the market value of gold, the new study found.
- Prosecutors in Colombia, Peru, Ecuador and other Amazonian countries are also adopting the new calculator, but with gold values soaring and official corruption entrenched, observers say that reducing illegal mining will remain a significant challenge.

‘Another catastrophe’: Flooding destroys Indigenous agroforestry projects in Peru’s Amazon
- Heavy rains likely caused by El Niño began flooding Peru’s Ene River at the beginning of March, with waters reaching around 2 feet high and spreading across 5,000 hectares (12,355 acres) of land occupied by around 300 Indigenous Asháninka families.
- Families in five Asháninka communities lost their homes as well as years of work on successful and sustainable agroforestry projects for cacao, coffee and timber, among other products.
- The flood waters have only recently receded, so a long-term or even mid-term plan for recovering their agroforestry projects hasn’t been developed yet.
- The Asháninka have faced many other setbacks over the years, from drug trafficking groups to unsustainable development projects, but have often overcome them to defend their territory. This flood marks the latest setback.

Nepal’s release of endangered crocs into historical habitat raises concerns
- Nepal recently released 25 critically endangered gharials into a tributary of the Mahakali River to reintroduce them to historical habitats, but concerns have arisen over transparency and timing of the process.
- Gharials are released into the Chaudhar river, part of the Terai Arc Landscape, to augment dwindling populations, although previous translocations have yielded mixed results.
- Researchers highlight challenges faced by gharials, including migration obstacles due to dams and barrages, and they advocate for better timing of releases to optimize adaptation and survival.
- Issues such as lack of publicized government studies, potential influence of reciprocal gifts in translocation decisions and denial of budget-related motives are raised amid efforts to conserve gharials.

In climate-related flooding, a Ugandan river turns poisonous
- Uganda’s Nyamwamba river, in the Rwenzori Mountains, has begun to flood catastrophically in recent years, partly due to climate change.
- Along the river are copper tailings pools from an old Canadian mining operation, which are becoming increasingly eroded by the flooding.
- According to a series of studies, these tailings have been washing into the water supply and soil of the Nyamwamba River Basin, contaminating human tissue, food and water with deadly heavy metals.
- Cancer rates are higher than normal near the tailings pools, and scientists fear that as the flooding continues to worsen, so will the health crisis.

Climate change brings a river’s wrath down on western Uganda
- Since the 1960s, Uganda’s climate has warmed by an average of 1.3°C (2.3°F).
- The warming is partly responsible for an increasing number of catastrophic floods on the Nyamwamba River, in western Uganda’s Rwenzori Mountains.
- In 2020 alone, 173,000 people were affected by flooding in Kasese district, when 25,000 houses were destroyed.
- Many of those rendered homeless by the floods continue to languish in temporary housing camps four years on.

Nile Basin farmers grow food forests to restore wetlands and bring back a turtle
- Sugarcane is a widely grown crop in the Nile Basin, but its destructive effects on soils, water resources and biodiversity have become increasingly apparent.
- As the thirsty crop draws down water resources, aquatic species like the critically endangered Nubian flapshell turtle suffer a loss of habitat, forage and nesting sites.
- In an effort to revive soils, diversify diets and incomes, and boost water levels that many animals rely on, communities are implementing agroforestry projects in lieu of monocultures.
- The resulting “food forests” attract an array of wildlife while refilling wetlands and river systems where the culturally important flapshell turtles swim.

Gharial conservation plan leaves Nepal fishing communities searching for new jobs
- Since the creation of Chitwan National Park, some Indigenous Bote people who have lost access to their ancestral lands and livelihoods have been employed by the park as gharial keepers to help conserve the critically endangered species.
- However, community members say the park’s restrictions on their fishing livelihoods to protect the reptile species is taking a toll on their economic needs and restricting their rights; the possibility of working as gharial keepers and other livelihood alternatives are insufficient, they say.
- Many parents are now encouraging their children to migrate to Persian Gulf countries to work as migrant laborers in order to lead a better material life.
- Conservationists say restricting fishing is an important step in protecting the species, which would struggle to survive if many economically dependent communities fished in the rivers.

Locals at the mouth of the Amazon River get a salty taste of climate change
- Ocean rise and changes in the Amazon River are ruining the way of life in an archipelago close to where the Amazon River runs into the Atlantic.
- In Bailique, locals are experiencing longer periods of salty water, a natural phenomenon that is becoming more usual due to climate change.
- Açaí berries, the prime economic drive of the community, are becoming saltier, and palm trees are being eaten by the erosion caused by changes in the Amazon River’s flow.
- Part of the population has already left the region, as others struggle to adapt to the new landscape.

Controversy brews over proposed dam on Kathmandu’s Bagmati River
- A proposed dam on Kathmandu’s Bagmati River aims to collect rainwater during the wet season and release it in the dry season to rejuvenate the river, but skeptics question its viability and safety.
- Concerns include environmental impact, potential destruction of trees, pollution and the risk of dam failure in earthquake-prone Nepal.
- Political, ecological and community-related questions remain unanswered, with some advocating for alternatives and further analysis before proceeding.

Hydropower in doubt as climate impacts Mekong Basin water availability
- Warmer and drier wet seasons in the upper basin of the Mekong River are affecting the availability of water for hydropower generation along the major watercourse, according to a new analysis.
- At a recent online discussion, regional experts questioned the viability of hydropower on the Mekong as a long-term, sustainable energy solution, given the increasing presence of climate risks.
- With large-scale dams in upper parts of the basin failing to fill their reservoirs, panelists at the event asked whether they are truly worth their documented impacts on downstream ecosystems, livelihoods and communities.
- Panelists recommended continued information sharing and improved coordination of dam operations to preserve the river’s crucial flood pulse that triggers the seasonal expansion of Tonle Sap Lake in Cambodia, and also highlighted the conservation importance of the Tonle Sap watershed, including tributaries in Cambodia’s Cardamom Mountains.

As climate disasters claim their children, Bangladeshi mothers seek safety in bigger families
- Climate change is exacerbating child mortality in flood-prone areas of Bangladesh, prompting mothers to have larger families as a response to the fear of losing children to disasters.
- Studies indicate an 8% surge in infant mortality risk in flood-prone regions, resulting in more than 150,000 lives lost between 1988 and 2017.
- While Bangladesh has seen improvements in disaster management, reduced cyclone deaths, and progress in health for mothers and children, climate change poses new threats, especially to vulnerable coastal communities lacking adequate protection.
- A National Adaptation Plan offers solutions such as water conservation and livelihood opportunities, but challenges like funding, coordination and transparency need attention for effective implementation, experts say.

Risks to Myanmar’s last saltwater crocs point to coastal conservation needs
- A new study confirms that Myanmar’s last population of saltwater crocodiles is perilously isolated and that without efforts to connect suitable coastal wetlands, the future of the species is in the country is uncertain.
- Deforestation and conversion of coastal habitats for commercial production, persecution due to conflicts with people, and hunting and wild capture to supply demand for crocodile meat and skin products have all taken their toll on crocodile numbers.
- The researchers recommend conservationists and policymakers in Myanmar focus on reconnecting remaining coastal habitats, including existing coastal protected areas, and identify key crocodile habitat areas and potential movement corridors to aid such conservation action.
- Enhancing coastal habitat connectivity would not only enable crocodile population recovery, it would also reduce pressure on communities coping with negative interactions with crocodiles.

Amazon catfish must be protected by the Convention on Migratory Species COP-14 (commentary)
- The latest Convention on Migratory Species of Wild Animals (also known as the Bonn Convention) meeting (COP-14) is taking place in Uzbekistan this month, and the government of Brazil has proposed protections for two catfish species with extraordinary migrations, the dorado and piramutaba (manitoa).
- The dorado’s migratory journey for instance spans a distance of 11,000+ kilometers round trip, from the Andes to the mouth of the Amazon River, and along the way it connects multiple ecosystems and feeds local and Indigenous fishing communities, but is under increasing threat.
- “During COP-14, the dorado and piramutaba will take a prominent place thanks to the Brazilian Government’s proposal to include them in CMS Appendix II…It is essential that the governments at the meeting adopt Brazil’s proposal,” a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.

New guidebook supports U.S. tribal nations in adopting rights-of-nature laws
- A new guidebook aims to assist tribal nations across the United States in adopting legal frameworks that recognize the rights of nature.
- The growing rights-of-nature movement seeks to protect the environment by legally acknowledging its inherent right to exist and thrive independent of human use.
- The guide examines real-world challenges and pathways for passing laws and includes case studies of tribes that have enacted rights-of-nature laws through constitutions, ordinances and resolutions.
- The guide contains practical guidance on steps like surveying community perspectives, holding educational gatherings, and forming planning committees.

Communities on troubled Java river mold future from plastic waste
- The Ciliwung is a highly polluted river running from Mount Pangrango in western Java, through the city of Bogor, before ending in the bay north of Jakarta, Indonesia’s capital.
- Since 2018, Bogor Mayor Bima Arya Sugiarto has overseen an initiative to rehabilitate the river, which was awash with plastics and dangerous levels of fecal coliform bacteria.
- Bogor is among more than 50 global cities participating in the Plastic Smart Cities, initiated by WWF to help eliminate plastics from nature.

Nepal’s gharial population rises, but threats to the crocs persist
- The population of critically endangered gharials in Chitwan National Park, Nepal’s stronghold for these crocodiles, increased by around 11% as of the start of 2024, totaling 265 individuals compared to 239 the previous year.
- While the increase is positive, a recently published study shows the critically endangered crocs are unevenly distributed throughout their range, with threats from fishing, changes in river flow, and infrastructure development deterring them from certain prime habitats.
- The study also flagged the low success rate of a raise-and-release program for captive-bred gharials: 404 gharials have been released under the program, but the overall population has increased by just 80.
- Juveniles released under the captive-breeding program are likely suffering high mortality rates in the wild or getting washed downstream to India; experts say a possible solution is to release them as far upstream as possible.

Courage & calm despite attacks: Q&A with Colombian activist Yuly Velásquez
- For years, Colombia’s largest oil refinery, owned by the national oil company Ecopetrol, has discharged oil and toxic waste into water bodies, impacting fish and the livelihoods of fishers.
- Yuly Velásquez, a local fisher and president of an environmental organization, has spent years documenting water contamination and corruption linked to the refinery, and she faces consistent threats and attacks.
- According to a 2022 report by the NGO Global Witness, Colombia is the most dangerous country in the world for environmental and land defenders, with 60 murders that year.
- In this interview with Mongabay, she discusses the threats environmental defenders face in Colombia and what helps her stay resilient in the face of attacks.

Indigenous effort in Bangladesh helps reverse endangered fish’s slide to extinction
- Unchecked logging and quarrying of rocks from streambeds in Bangladesh’s Chittagong Hill Tracts led to springs drying up and populations of putitor mahseer fish, an endangered species, disappearing.
- The situation was worsened by climate change impacts, characterized here by a more intense dry season during which even streams that once ran year-round now dry up.
- A project launched in 2016 and backed by USAID and the UNDP is working with Indigenous communities to reverse this decline, starting with efforts to cut down on logging and quarrying.
- As a result of these efforts, areas where forests have been conserved have seen the flow of springs stabilize and populations of putitor mahseer and other fish revive.

Why the Amazon’s small streams have a major impact on its grand rivers
- An unprecedented time-series study in the basin of the Tapajós River, a major tributary of the Amazon, assesses the level of degradation of small rivers threatened by agribusiness expansion.
- Researchers from several universities will assess the conservation status of 100 streams spread between the municipalities of Santarém and Paragominas, at the confluence of the Tapajós and the Amazon, which were first analyzed in 2010.
- The impact of dirt roads and their network of river crossings, which causes sediment load, siltation, erosion and changes in water quality, was one of the factors that caught researchers’ attention in the initial time-series study.
- Experts say that local development models should ideally start from water to land, rather than the other way around, given the importance of water for the rainforest, its biodiversity, and the inhabitants who depend on both.

The waters of the Xingu: A source of life at risk of death
- In Xingu Indigenous Park in the Brazilian Amazon, rivers and lakes are natural arteries that provide life for animals and Indigenous communities, serving as a base for eating, bathing, social interaction and refuge in times of drought.
- The waters of the Xingu, however, are threatened by monocrop plantations around the park, which dry up the springs and pollute the rivers with pesticides.
- At the same time, climate change is exacerbating the periods of drought, with some rivers drying up entirely during these times.
- In this photo essay, photographer Ricardo Teles shows the relationship that the Indigenous peoples of the Xingu have with the waters that bathe their territory.

Illegal gold mining threatens Indus River water and biodiversity in Pakistan (commentary)
- The Indus River in Pakistan is being extensively disturbed by unregulated mining of the river’s bed (‘placer mining’) for gold.
- Numerous operations employing an estimated 1,200 heavy machines dig daily into the riverbed and dump buckets of sediment and rocks into screening devices, destroying habitat and muddying the water flowing downstream.
- “It is crucial to the development for the region’s economy and environmental preservation efforts to regulate placer gold blocks along the Indus River,” a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Conservation ‘setback’ looms as Nepal opens protected areas to hydropower projects
- Nepal’s government has approved a controversial new proposal allowing the development of large-scale hydropower plants within protected areas, prompting concerns about conservation setbacks.
- The “Construction of Physical Infrastructure Inside Protected Areas” procedures was officially approved Jan. 4, permitting hydropower developers to build projects entirely within protected areas, release minimal water during the dry season, and acquire land more easily.
- Conservationists, lawyers and Indigenous communities have opposed the policy, calling it legally flawed and warning that it threatens conservation achievements in the face of climate change.
- More than two dozen conservationists submitted feedback during the policy’s public consultation phase, but these weren’t accommodated to any significant degree in the final document.

As Sri Lanka floods swell with climate change, so does human-crocodile conflict
- Sri Lanka is among the countries most vulnerable to climate change, with long drought spells, receiving intense rain during a shorter period with a marked increase in flood events.
- During flooding, crocodiles inhabiting rivers tend to reach land and move closer to human settlements, increasing the risk of encounters with people.
- The Nilwala River flows through southern Sri Lanka and recent flood events have increased croc encounters with humans in the Matara district and escalated threats to human safety, resulting in disaster management responses.
- During recent flooding events, no serious incidents linked to crocodiles were reported, but wildlife officials had to chase crocs away from riverbanks, highlighting the need for an immediate and durable solution for the human-crocodile conflict around the Nilwala River area.

Salmon and other migratory fish play crucial role in delivering nutrients
- Pacific salmon can play a key role in transporting nutrients from marine to freshwater and terrestrial ecosystems.
- In the past, Pacific salmon and other anadromous fish that spawn in freshwater and spend part of their life in the ocean likely played a much larger role in global nutrient cycles, scientists find.
- But today, many populations of Pacific salmon and other anadromous fish are under pressure from habitat loss, overfishing, climate change, dams and other pressures that have greatly reduced their numbers, weight and ability to migrate freely.
- Population declines could further curtail their role in global nutrient transport in future, with increasing consequences, especially for nutrient-poor ecosystems that have relied in the past on migratory fish for significant nutrient additions.

Illegal gold mining devastates Peruvian Amazon river and communities
- Mongabay Latam traveled along 38 kilometers (24 miles) of Peru’s Cenepa River, near the border with Ecuador, where illegal mining dredges run around the clock in search of gold, hemming in seven Indigenous Awajún communities.
- The constant mining activity and presence of the miners has brought violence, crime and sexual exploitation to the Awajún communities and wrought widespread environmental destruction that shows no signs of slowing.
- Police and environmental defense leaders conducted raids in early October, but the lack of permanent enforcement in this part of the Amazon has allowed the dredging rafts to returned and once again churn up the river basin.

Study: Fishing with pesticides and dynamite puts Ecuadorian Amazon in peril
- Illegal fishing with agrochemicals and explosives across several of Ecuador’s Amazonian states is an uncontrolled problem, causing long-lasting, irreversible damage to aquatic ecosystems, recent research has shown.
- The study links high levels of poverty to the wider practice of unsustainable fishing, and calls for tighter controls on the sale and availability of agrochemicals and dynamite across the country.
- Fish caught using toxic chemicals can be dangerous for human consumption, the study warns, and says there should be more action to help educate communities about these dangers.

Could mugger crocodiles be brought back from regional extinction in Bangladesh?
- Once, mugger crocodiles (Crocodylus palustris) were common in Bangladesh’s major rivers, including the Padma, Jamuna, Meghna and most of their tributaries, but the species is thought to have gone extinct in the country due to unchecked poaching for its prized skin.
- Although the IUCN in 2000 declared the mugger regionally extinct in Bangladesh, three adult muggers were recovered from the country’s river and water bodies in only 11 days, Oct. 17-28 this year.
- The crocodiles were taken to the Karamjol Crocodile Breeding Centre in Khulna, and authorities are working on how muggers could be brought back to nature by increasing their population through captive breeding.
- Experts suggest establishing a safe zone for the crocodiles in the upper Padma River.

Cocopah Tribe aims to restore Colorado River habitat — and tribal culture
- On the lands of the Cocopah Tribe in the U.S. state of Arizona, declining water levels on the Colorado River have paved the way for invasive plants to take over a riverside once full of native trees.
- Native vegetation along the river not only provides habitat for wildlife but also has shaped Cocopah culture by providing resources to build homes, art and other items.
- This year, the Cocopah Tribe’s Environment Protection Office cut the ribbon on a project to restore land along the river to what it looked like decades ago, complete with a walking trail.
- For 2024, the tribe plans to use $5.5 million in grant funding to restore habitat and plant native trees along an even longer stretch of the river, helping to preserve Cocopah culture for generations to come.

Thailand tries nature-based water management to adapt to climate change
- With an economy largely underpinned by irrigated crops like rice, water is a crucial resource in Thailand. But as climate change exacerbates floods and droughts in the country, sustainable water management is an increasing challenge.
- Nature-based solutions that incorporate the natural processes of the country’s abundant rivers, floodplains and watershed forests are beginning to be trialed via various projects at large and small scales.
- A new report assesses the efficacy of two nature-based approaches to water management in Thailand, which represent a step away from the country’s typically top-down, hard-engineering approach and present several benefits to the environment and communities.
- However, environmental and societal tradeoffs, complex policy frameworks, and the need for greater understanding and expertise around the concept, design and implementation of nature-based approaches are barriers to their widespread implementation.

Paradise lost? Brazil’s biggest bauxite mining firm denies riverine rights
- Mineração Rio do Norte (MRN), Brazil’s largest bauxite producer, launched a new mining project in the Amazon region in 2019 but failed to notify and consult four impacted traditional riverine communities that have been established for generations. The villages say their lives are heavily impacted.
- MRN’s stance of no significant impact is backed by IBAMA, Brazil’s environmental agency, because it only is required to recognize Indigenous and Quilombola populations as legitimate traditional peoples guaranteed prior, free, informed consultation — a right enshrined in international law.
- Other traditional riverine communities are being denied such a right, say critics who are calling on President Luiz Inácio Lula da Silva’s government to instruct IBAMA to reduce the impact of mining on riverine communities.
- Action by IBAMA could help preserve the way of life for hundreds of traditional riverine people likely to be affected by a series of new mines planned by MRN. The ruling could also act as a precedent for other traditional communities not currently guaranteed prior, free, informed consultation.

How scientists and a community are bringing a Bornean river corridor back to life
- Decades of deforestation to make way for oil palm monoculture have transformed the Kinabatangan River floodplain in east Sabah, Malaysian Borneo, dividing wildlife populations and confining many of the region’s most iconic species to small fragments of forest that cling on along the river.
- Local communities and conservation initiatives are working together to restore and reconnect pockets of remaining habitat along the river to preserve the vital wildlife corridor, but restoration in the unpredictable and often-waterlogged floodplain is notoriously difficult.
- One such initiative, Regrow Borneo, is facing the challenge by leveraging the expertise of scientists and local knowledge of community members who have been planting forests along the Kinabatangan for decades.
- They say that by focusing their approach on a model that benefits both people and wildlife, they hope their program inspires others to shift away from simply planting numbers of trees toward restoring forests where they’re most needed, including in areas that present challenging conditions.

Last of the reef netters: An Indigenous, sustainable salmon fishery
- Reef net fishing is an ancient, sustainable salmon-harvesting technique created and perfected by the Lummi and other Coast Salish Indigenous people over a millennium.
- Rather than chasing the fish, this technique uses ropes to create an artificial reef that channels fish toward a net stretched between two anchored boats. Fishers observe the water and pull in the net at the right moment, intercepting salmon as they migrate from the Pacific Ocean to the Fraser River near present-day Washington state and British Columbia.
- Colonialism, government policies, habitat destruction, and declining salmon populations have separated tribes from this tradition. Today, only 12 reef net permits exist, with just one belonging to the Lummi Nation.
- Many tribal members hope to revive reef net fishing to restore their cultural identity and a sustainable salmon harvest but face difficulties balancing economic realities with preserving what the Lummi consider a sacred heritage.

Fish out of water: North American drought bakes salmon
- An unprecedented drought across much of British Columbia, Canada, and Washington and Oregon, U.S., during the summer and fall months of June through October could have dire impacts on Pacific salmon populations, biologists warn.
- Low water levels in streams and rivers combined with higher water temperatures can kill juvenile salmon and make it difficult for adults to swim upriver to their spawning grounds.
- Experts say relieving other pressures on Pacific salmon and restoring habitat are the best ways to build their resiliency to drought and other impacts of climate change.

New study pushes for protection of one of Africa’s ‘least understood treasures’
- A new study reveals the extent of a tropical water tower in Angola, which performs the same role as snow-capped mountains in the Northern Hemisphere.
- The Angolan Highlands Water Tower contains peatlands and freshwater lakes that supply major rivers in the region, and the wildlife-rich Okavango Delta in Botswana.
- Despite this vital hydrological role, the water tower currently has no formal protection.
- The team behind the study hopes it will help to strengthen the case for recognition of a vast portion of the water tower as a Ramsar Site of International Importance.

‘We just want to be left in peace’: In Brazil’s Amazon, soy ambitions loom over Indigenous land
- Deforestation is surging around Indigenous reserves in Brazil’s agricultural heartland, threatening one of the last stretches of preserved rainforest in the region.
- The destruction is trickling into protected areas too, including Capoto/Jarina Indigenous Territory, home to Brazil’s most famous Indigenous leader.
- Indigenous advocates blame land speculation on the back of plans to pave a stretch of the MT-322 highway, which runs across the Capoto/Jarina and Xingu Indigenous Park.
- Indigenous people worry the road will ease access into their territories, opening them up to land-grabbers, wildcat miners and organized crime groups.

Dam-building on Mekong poses risk to regional industries, report says
- A new report from WWF highlights how vital regional supply chains that rely on a healthy and connected Mekong River are undermined by hydropower development.
- Recent decades have seen scores of hydropower dams built on the Mekong River system, including 13 large-scale projects spanning the river’s mainstream channel, with hundreds more either planned or under construction.
- The report looks at how the economic value of hydropower in the Lower Mekong Basin measures up against its high economic trade-offs for five key sectors that underpin regional economies.
- The report provides recommendations for governments, investors and businesses to understand the true cost of hydropower and mitigate the inevitable risks they face over the decades to come.

Java farmers displaced by dam remain treading water after decades
- Farmers displaced by Indonesia’s Jatigede Dam have been forced to find new livelihoods or move to different regions of the archipelago.
- Many families were paid the equivalent of just 50 U.S. cents per square meter of land at the time, or 4.5 cents per square foot, as land acquisition accelerated in the 1980s.
- Indonesia’s second-largest dam is about to commence operation as a 110-megawatt hydroelectric plant, in addition to providing irrigation water for around 1 million farmers.

Nepal’s water hyacinth helps exotic fish invade, harming native species: Study
- Exotic fish species such as Nile tilapia and glassfish were introduced by humans to Pokhara, Nepal’s Lake City for various reasons, and they compete with and prey on native fish species.
- A study suggests that water hyacinth, an invasive plant species, could be helping exotic fish species in Pokhara’s lakes to invade the lakes and reduce the diversity and abundance of native fish species.
- The researchers suggest that urgent conservation action is needed to control the spread of both water hyacinth and exotic fish species, and to protect the native fish species and the ecosystem of the lakes.

To keep track of salmon migrations in real time, First Nations turn to AI
- Partnering with First Nations, a new interdisciplinary study proposes harnessing artificial intelligence and computer-based detection to count and produce real-time data about salmon numbers.
- Monitoring their population when they return to the rivers and creeks is crucial to keep tabs on the health of the population and sustainably manage the stock, but the current manual process is laborious, time-consuming and often error-prone.
- Fisheries experts say the use of real-time population data can help them make timely informed decisions about salmon management, prevent overfishing of stocks, and give a chance for the dwindling salmon to bounce back to healthy levels.
- First Nations say the automated monitoring tool also helps them assert their land rights and steward fisheries resources in their territories.

More action needed to protect freshwater ecosystems, report says
- A recent report from the international conservation NGO WWF argues that freshwater ecosystems are too valuable to go overlooked as new conservation policies are created.
- Freshwater underpins global food security, the economy and public health, putting the total value of water in 2021 at around $58 trillion, or 60% of the global GDP, the report estimates.
- WWF urged governments to revitalize efforts to conserve 30% of rivers, lakes and wetlands by 2030 and for the private sector to develop better risk assessments that eliminate pollution from their supply chains and consider how they contribute to water scarcity.

Oil firm Perenco eyes new blocks in DRC amid criticism of its track record
- Oil multinational Perenco has bid on two new oil blocks being auctioned off by the government of the Democratic Republic of Congo.
- Perenco operates the country’s only oil production facilities, at Muanda, near the mouth of the Congo River.
- Local and international critics accuse the oil company of polluting the environment, affecting fishing and farming, as well as residents’ health; the company denies this.

Fishing ban extension raises hopes for iconic Amazon pink river dolphin
- The Amazon river dolphin, or boto, is an integral feature of the rainforest’s biodiversity and culture, and is central to several Indigenous tales.
- Even though the dolphin isn’t fished for human consumption, it’s become endangered over the decades because fishers use its flesh as bait for catching piracatinga catfish.
- The Brazilian government earlier this year renewed a moratorium on fishing of piracatinga, first imposed in 2014, in the hope of saving the dolphin, but experts say fishers have just been ignoring the rule.
- The measure became even more relevant in October following the detection of more than 100 dead dolphins in an Amazon lake — experts suspect that the deaths are directly linked to the extreme drought affecting the region.

Conservationists condemn Nepal proposal to allow hydropower in protected areas
- The Ministry of Forest and Environment has proposed a new procedure that would allow large-scale hydropower development inside protected areas, with fewer environmental safeguards and more legal loopholes.
- Conservationists and legal experts have criticized the proposal as going against the Constitution and the National Parks and Wildlife Conservation Act as well as risking the biodiversity and ecosystem services of Nepal’s protected areas.
- They have also warned that the proposal could undermine the balance between development and conservation and expose the country to more climate change impacts such as floods and landslides.
- The Department of National Parks and Wildlife Conservation has defended the proposal as documenting the existing practices and bolstering the balance, not upsetting it.

Muddied tropical rivers reveal magnitude of global gold mining boom: Study
- A new study reveals that 59,000 kilometers, or nearly 37,000 miles, of tropical rivers have been damaged by mining, based on 7 million measurements taken from satellite images spanning four decades.
- The new study reveals a runaway river mining boom starting in the mid-2000s, largely caused by a tremendous spike in gold prices since the 2007-2008 financial crisis. Since then, the price of gold — an element which accounts for 90% of river mining in the tropics — has only gone up.
- An estimated 5-7% of the world’s large tropical rivers are considered severely affected by sediment from river-mining activities, with 173 large rivers impacted in the global tropics.
- Up to a third of global freshwater fish species are found in tropical rivers. Mining, much of it illegal or informal, seriously impacts both human and natural communities in numerous ways. Sediment traps aquatic life in dense, cloudy, muddied water, with sunlight unable to reach plants and fish.

Tropical lakes are carbon super sinks, even more than forests, study shows
- Research shows that Amazonian water bodies capture 39% more carbon per unit area than the rainforest itself.
- The research also revealed that lakes and rivers located in tropical regions with preserved forests sequester 10% of the carbon in these locations.
- The study shows the importance of preserving wetlands against climate change, the researchers say.

For International Youth Day, three youth conservation success stories
- This Saturday is International Youth Day, a day established by the U.N. to draw attention to youth issues worldwide.
- This year celebrates youth developing the “green skills” needed to shift the world into one that is environmentally sustainable and climate-friendly.
- In recognition of the international day, Mongabay spoke with three youths worldwide who initiated successful environmental restoration organizations in their communities.

Video: Rio de Janeiro’s defender of mangroves
- Guanabara Bay in Rio de Janeiro has suffered for decades from inefficient sewage treatment, oil spills and mangrove deforestation.
- For more than 30 years, biologist Mario Moscatelli has been fighting to reverse this process and revitalize the landscape.
- For denouncing corruption, environmental crimes and government inaction, he faced intimidation and even death threats.

In Philippines, climate change tests Indigenous farming like never before
- In the uplands of the Philippines’ Iloilo province, Indigenous Suludnon farmers maintain deep connections to the agroecosystem that has sustained their community for generations.
- Agroforestry systems and diversified planting have helped the Suludnon cope with a changing climate, and traditional knowledge of natural signs of hazardous weather have allowed them to prepare for storms.
- However, with climate change bringing increasingly frequent extreme weather events, along with crop pests and disease, the Suludnon’s time-refined methods are coming under strain.

The endless struggle to clean up Rio de Janeiro’s highly polluted Guanabara Bay
- Once a nursery for marine life, Guanabara Bay in Rio de Janeiro is now dying from the dumping of thousands of liters of sewage into its waters; artisanal fishers now survive by picking up the garbage that floats in the bay.
- Faced with failed promises of de-pollution by the government, civil society organized itself, creating areas of environmental protection and pressuring the companies responsible for basic sanitation in the state, which is still deficient today.
- On the shores of the Rodrigo de Freitas lagoon, a biologist started replanting the mangroves; life returned and the site has become a model of what can be done to save the Guanabara Bay.

How biological surveys prevent destructive dams in the Balkans
- Over 3,000 hydropower dams are proposed to be built in the next few years on Balkan rivers.
- A conservation research and advocacy project says this number is too high, due to such dams’ likely detrimental effects on fragile freshwater ecology, and argues that permits granted to hydropower companies do not take biological richness adequately into account.
- The Balkan country of Albania agreed with them recently, using the group’s data as part of its decision to cancel a giant dam project proposed for the Vjosa River, and instead named the area a national park.
- Mongabay visited the group’s latest biological survey of the Neretva River in Bosnia-Herzegovina and shares this new video report.

Offshore oil plans in Brazil threaten South America’s largest coral reef
- The Parcel de Manuel Luís coral reef, off the coast of northeastern Brazil, is a vital habitat for several species, including 53 at risk of extinction.
- Despite vetoes from Brazil’s environmental regulator, the local government is seeking to give the go-ahead to oil drilling projects in this part of the Pará-Maranhão Basin.
- Oil drilling in the region also poses a threat to the longest continuous stretch of mangrove in the world, which runs from the Maranhão coastline to the northern state of Amapá, in the Amazon.

Clean me a river: Southeast Asia chokes on Mekong plastic pollution
- New research shows that the drift of microplastics from the Mekong River to the coastlines of countries around the South China Sea depends on variable factors, including seasonal changes in winds and ocean currents.
- The Philippines is most exposed to plastic waste that mainly drifts from the Mekong River to the sea during the monsoon season, with 47% of the stranded particles ending up on its coast, followed by Indonesia at 24%, Vietnam at 17%, and Malaysia at 8%.
- Environmental advocates say the findings of this study underscore the importance of international cooperation in combating plastic pollution, which harms marine biodiversity and coastal economies.

Can Spain keep the rising sea from washing away a critical delta?
- One of Europe’s most important deltas, a vital wildlife sanctuary and economic engine, is facing a myriad of threats stemming from climate change and water management.
- Rising sea levels and stronger storms are washing away the very sediment that constitutes the Ebro Delta and sending saltwater far inland.
- The government plan to bolster the delta relies heavily on trucking sediment to its exposed outer banks, but it’s a stop-gap measure until researchers can develop a more sustainable long-term solution.
- The question is: Can they find one in time?

Death of rare male gharial in Nepal highlights conservation crisis
- A male gharial, a critically endangered crocodilian, was found dead in Nepal’s Chitwan National Park, entangled in a fishing net and hook.
- Male gharials are vital for the survival of the species, which has a skewed sex ratio and faces threats from fishing, habitat loss, and poaching.
- Park officials are trying to boost the male population by incubating eggs at a certain temperature, but critics question the effectiveness and sustainability of this approach.

Nepal’s rhinos are eating plastic waste, study finds
- A study found plastic waste in the dung of one-horned rhinos in Nepal’s Chitwan National Park, which could harm their health and survival.
- The plastic waste comes from the rivers that flood the park during monsoon season, as well as from visitors who litter the park.
- The study suggested that the government and its conservation partners should conduct clean-up programs and implement sustainable waste management plans to protect the rhinos, which are a vulnerable species.

Dam-building spree pushes Amazon Basin’s aquatic life closer to extinction
- A recent study looking at 343,000 kilometers of waterways along 6,000 rivers across the Amazon Basin highlights the importance of free-flowing rivers to migratory species of fish and turtles, as well as river dolphins.
- More than 20 species are threatened by the construction of hydroelectric dams on long-distance rivers, considered to be key corridors for biodiversity.
- The study’s researchers identified 434 dams that have either been built or are currently under construction across the whole of the Amazon Basin, and a further 463 proposed dams that are in various stages of planning.
- One of the proposed dams on the Tapajós River would leave at least four pods of river dolphins isolated from one another, leaving them facing a similar fate to the tucuxi river dolphins impacted by similar projects on the Madeira River and today threatened with extinction.

Climate change, human pressures push Bangladesh’s ‘national fish’ into decline
- Bangladesh’s all-important hilsa fishery is declining amid pressures from human-driven factors and climate change, experts and authorities warn.
- The fish, Tenualosa ilisha, contributes around 12% of the total fish catch in Bangladesh, and the fishery employs at least 2.5 million people across the country.
- Several government conservation initiatives, including declaring six hilsa sanctuaries and two fishing bans during the year, have helped boost production in the past two decades.
- However, pressures persist, including rising salinity levels in the rivers where the fish spawn, discharge of pollution and agricultural runoff, and disruptions to water flow as dams are built upstream.

Seeking environmental DNA in Himalayan rivers: Q&A with Adarsh Man Sherchan
- Conservation geneticist Adarsh Man Sherchan is one of the leading experts keeping track of the impacts that Nepal’s dozens of dams are having on freshwater species.
- The Himalayan country has more than 120 hydroelectricity plants, many of which were built without prior aquatic biodiversity assessments.
- With advances in assessment technologies, notably environmental DNA (eDNA), and a growing cohort of trained experts like Sherchan, there’s a greater focus on identifying and mitigating the impacts of dams on river life.
- In an interview with Mongabay, Sherchan talks about why eDNA is a gamechanger for monitoring species, the process of getting eDNA samples from rivers, and why jeans and flip-flops are a no-go for fieldwork.

Expedition catches Amazon river dolphins to help save this iconic pink species
- In December, researchers gathered extensive data on a population of Amazon river dolphins in the Amanã Sustainable Development Reserve in the Brazilian state of Amazonas.
- They fitted some of the dolphins with radio transmitters to help map their preferred zones and identify priority regions for species protection.
- At the top of the food chain, the river dolphins play important roles as regulators of Amazonian river life and as environmental indicators for potential zoonoses.
- Hydroelectric dams, fishing, and contamination from mining pose the greatest threats to the species across its range.

Fishers confirm scientists’ warning: Brazil’s Belo Monte dam killed off the river
- Seven years after the Belo Monte hydroelectric plant went into operation, fishers confirm what scientists have been verifying in studies: the fish have disappeared from this stretch of the Xingu River.
- According to Brazil’s Public Prosecutor’s Office, the construction of the dam caused the direct deaths of more than 85,000 fish, equivalent to 30 metric tons, between 2015 and 2019.
- The loss of fish has reverberated up the food chain, with local fishing communities no longer able to make a living that generations before them took for granted.

Award-winning community group in Sumatra cleans up lake
- A group of locals have since 2013 tried to clean up the trash pooling in Lake Sipin in the Sumatran province of Jambi.
- Their efforts have received national attention, with their leader, Leni Haini, awarded the country’s highest environmental award in 2022 by the government.
- Indonesia has announced a plan to restore 15 lakes (Sipin isn’t included) across the country by 2024, citing their high degree of degradation, chiefly sedimentation, which has resulted in their rapid shrinking and a decline in the biodiversity they host.
- These lakes are crucial in supporting the livelihoods of millions of Indonesians, serving as a source of freshwater, a form of flood control, and a site for fish-farming and tourism.

Conservationists aim to save critically endangered European eels on Italy’s Po River
- European eels (Anguilla anguilla) are critically endangered, their population having plummeted by 97% since 1980.
- Illegal fishing, dams and other barriers to their migration, droughts, pollution and habitat changes are putting the eels’ survival at risk.
- These eels reproduce once in their lifetime, only in the Sargasso Sea, where they die. Their unique lifecycle and migratory pattern further complicates conservation efforts.
- In Italy’s Po River Basin, researchers are working to conserve eels through interventions including the construction of fish passages to defragment rivers, reproduction in captivity and teaching fishers to recognize and release the likeliest breeders.

Residents of southeast Alaskan town debate mine that’s bound to change region
- After years of debate, a proposed mine in southeast Alaska near the Chilkat River has a permit to dig an exploratory tunnel and release wastewater.
- The mine has become a divisive topic in the town of Haines, where the Chilkat River sustains the region’s thriving fishing industry.
- Some residents are concerned about how the project could impact salmon in the river and their fishing jobs.
- Others believe the mining companies running the project will be responsible when it comes to protecting the river, while providing jobs in mining.

Greater Mekong proves an ark of biodiversity, with 380 new species in a year
- Scientists described 380 new-to-science species from the Greater Mekong region of Southeast Asia between 2021 and 2022.
- Researchers working in Cambodia, Laos, Myanmar, Thailand and Vietnam identified 290 plant, 19 fish, 24 amphibian, 46 reptile and one mammal species, including a thick-thumbed bat, a color-changing lizard, and a Muppet-looking orchid.
- However, many of these species already face the threat of extinction due to human activity, prompting advocates to call for increased protection of their habitats by regional governments.
- The most urgent threats to the region’s wildlife and habitats include the construction of hydropower dams, climate change, illegal wildlife trade, and loss of natural habitats.

As tourism booms in India’s Western Ghats, habitat loss pushes endangered frogs to the edge
- India’s Western Ghats, a global biodiversity hotspot, is home to many endemic and endangered species of amphibians, some of which are new to science and others suspected of lying in wait of discovery.
- Deforestation due to infrastructure and plantation expansion in the southern Western Ghats threaten the region’s amphibian species, many of which have highly restricted habitats.
- Adding to their woes is an increased risk of landslides in parts of Kerala due to erratic, heavy monsoon rains and erosion due to loss of forest.
- To save them, experts are calling for a systematic taxonomic survey of amphibians in the region and for legal protection of endangered species.

Second chance for Lula as controversial Amazon dam goes up for renewal
- In the biological and cultural hotspot of the Volta Grande in Brazil’s Amazon, Indigenous communities and scientists have teamed up to monitor the impacts of the Belo Monte hydroelectric project, one of the biggest in the world.
- The dam complex has diverted 80% of the Xingu River’s water flow, significantly affecting the aquatic life in the Volta Grande river bend and pushing the entire ecosystem toward collapse, along with the local communities who rely on it.
- The complex’s environmental license, which lasts six years and dictates the amount of water flowing through Belo Monte, is currently up for review by the federal environmental protection agency, IBAMA.
- President Luiz Inácio Lula da Silva played a key role in pushing for the construction of Belo Monte, and now, back in power, can influence a new path for the environment and local communities, activists say.

Organic farming, and community spirit, buoy a typhoon-battered Philippine town
- After their town was devastated by floods in 2004, residents of Kiday in the Philippines shifted to organic methods when rebuilding their farms.
- Today, the Kiday Community Farmers’ Association practices agroecology and agroforestry, maintaining communal plots as well as private gardens.
- The association receives nonprofit support, but government funding continues to prioritize conventional agriculture over more sustainable methods.
- Farmers in Kiday also face a new threat in the form of the government-supported Kaliwa Dam, which is under construction upstream of the village.

On the border of Colombia and Venezuela, illegal gold mining unites armed forces
- On the border between Colombia and Venezuela, just a few kilometers from Colombia’s Guainía department, illegal mining shakes the region’s economy while devastating the environment. The absence of the government is obvious.
- According to witnesses and photographs, the areas around Yapacana Hill are full of improvised billiard halls, restaurants, ice cream shops, brothels, grocery stores, clinics and even nurseries; this is all occurring under the strict control of Colombia’s National Liberation Army and FARC dissidents.
- In a 2020 study, a Venezuelan organization called SOS Orinoco revealed the massive scale of the illegal mining in Yapacana: In that year, mining affected a total of 2,035 hectares (about 5,029 acres), an area equivalent to about 1,884 soccer fields that is visible in satellite images.

Crud-to-crude: The global potential of biofuels made from human waste
- Creating liquid biofuels from human waste shows promise as a way to meet one of alternative energy’s greatest challenges: reducing the transportation sector’s heavy carbon footprint. The good news is there is a steady supply stream where waste is treated.
- Humanity produces millions of tons of sewage sludge annually via wastewater treatment. Existing disposal methods include landfilling, application on agricultural land, and incineration; each with social and environmental consequences.
- Harnessing the carbon-rich potential of sludge as a transportation fuel for planes, ships and trucks is part of a drive toward zero waste and creating a circular economy, say experts. A host of projects are underway to prove the effectiveness of various methods of turning all this crud into biocrude.
- Some techniques show promise in lab and pilot tests, but large-scale industrial plants have yet to be built. Using pollutant-laden sewage sludge as a biofuel comes with its own environmental concerns, but lacking a silver-bullet solution to the human waste problem, it could be part of a suite of best alternatives.

‘It gives life’: Philippine tribe fights to save a sacred river from a dam
- Each year, members of the Dumagat-Remontado tribe gather at the Tinipak River to observe an Indigenous ritual to honor their supreme being and pray for healing and protection.
- This year, the rite had an additional intention: to ward off an impending dam project they fear will inundate the site of the ritual.
- The Kaliwa Dam, part of a program aimed at securing a clean water supply for the Manila metropolitan region, is already under construction and scheduled to go online in 2027.
- The project has faced resistance from civil society groups as well as many of the Dumagat-Remontado, who say they fear it will cause both environmental and cultural damage.

Spamming streams with hatchery salmon can disrupt ecosystems, study finds
- In a new study, researchers found that releasing hatchery-bred native masu salmon into freshwater streams in Hokkaido, Japan, destabilized the local ecosystems.
- Overall, the study found that the total number of fish, and number of different species, both declined in the long term due to greater competition for resources like food and preferred feeding spots.
- Masu salmon populations also did not increase in the long term, the research found.
- With hatchery releases increasing in many areas — and for many species — the findings add to the ongoing debate over their wider effects on wild fish populations.

‘Chasing giants’: Q&A with megafish biologist and author Zeb Hogan
- Earth’s freshwater ecosystems are among the most at risk from human-induced threats including overfishing, dam building, pollution and climate change.
- But biologists know relatively little about the animals that live in the murky depths of our rivers and lakes, perhaps least of all about some of their largest inhabitants.
- In a new book, fish conservation biologist Zeb Hogan teams up with journalist Stefan Lovgren to get to the bottom of a curious question: What is the world’s largest freshwater fish?
- An exploration of the world’s freshwater ecosystems from Australia to the Amazon, “Chasing Giants” also looks into the range of threats giant fish face the world over and what scientists, policymakers and the public can do to support their conservation.

A Guatemalan town fights to bar gold mining and save its waters
- Over the last 25 years, local community members have repeatedly rejected a gold mining project on the border of Guatemala and El Salvador for lack of environmental compliance.
- The government of Guatemala has approved the extension of the Cerro Blanco project, which, under new ownership is planned to switch from underground to open-pit mining.
- Worried that mining is contaminating waters and affecting biodiversity, the community of Asunción Mita held a referendum last September, voting to reject the project, but it hasn’t yet obtained recognition from the state.
- While mining is on hold, awaiting a final verdict on the referendum, natural ecosystems and watercourses are bouncing back with life.

In a Bolivian protected area torn up for gold, focus is on limiting damage
- Artisanal gold mining by local cooperatives abounds in protected areas across Bolivia, in particular the Apolobamba highlands near the border with Peru.
- The mining boom here began in the late 1990s, and since then the cooperatives have continued to use mercury amalgamate the gold.
- There are worries over mercury contamination as well as the diversion of river flows away from wetlands to the mines.
- NGOs working with the cooperatives say the local miners are keen on making their operations more sustainable, but that the cost and lack of government support are hurdles to achieving this.

Mouth of the Amazon oil exploration clashes with Lula’s climate promises
- State-owned Petrobras has requested a license to investigate an oil site in a region in the north of Brazil where the Amazon River meets the Atlantic Ocean.
- The region is home to swathes of mangroves and coral reefs that environmentalists say are highly biodiverse and fundamental to local communities.
- Experts demand that Brazil’s environmental agency reject the license, saying the government hasn’t conducted the required detailed studies to assess the potential impact.
- Critics warn that pursuing fossil fuels contradicts President Luiz Inácio Lula da Silva’s vows to adopt a renewable energy strategy and clashes with global climate change guidelines.

Meet the 2023 Goldman Environmental Prize Winners
- This year marks the 34th anniversary of the prestigious Goldman Environmental Prize, which honors one grassroots activist from each of the six inhabited continents.
- The 2023 prize winners are Alessandra Korap Munduruku from Brazil, Chilekwa Mumba from Zambia, Delima Silalahi from Indonesia, Diane Wilson from the U.S., Tero Mustonen from Finland, and Zafer Kızılkaya from Turkey.

Power of traditional beliefs lies at the heart of an anti-mine campaign in PNG
- A newly published study published explores the important role that traditional Papua New Guinean beliefs play in an ongoing campaign against a copper and gold mine on a tributary of the Sepik River.
- Critics say the controversial mine project could potentially pollute one of the most biologically and culturally diverse places on Earth, while supporters point to potential development benefits.
- The Save the Sepik campaign against the mine harnesses traditional governance structures and beliefs, acknowledging the spirits of ancestors, the land and river, in a declaration that has become a rallying cry for the campaign.
- The campaign’s success so far — licenses haven’t been awarded for the mine project — is part of a growing global movement that acknowledges the close relationship some communities have with a sentient environment.

Robust river governance key to restoring Mekong River vitality in face of dams
- Billions of cubic meters of Mekong River water are now harnessed behind dams in the interests of power generation, severely affecting crucial physical and biological processes that sustain the river’s capacity to support life.
- As the pace of hydropower development continues to pick up across the river basin, cracks in the region’s dated and limited river governance systems are increasingly exposed.
- Major challenges include the lack of formal, legally binding regulations that govern development projects with transboundary impacts, and a legacy of poor engagement with riverside communities who stand to lose the most due to the effects of dams.
- Experts say that open and honest dialogue between dam developers and operators is needed to restore the river’s natural seasonal flow and ensure the river’s vitality and capacity to support biodiversity and natural resources is sustained.

As hydropower dams quell the Mekong’s life force, what are the costs?
- The Mekong River is one of Asia’s longest and most influential waterways, sustaining extraordinary species and biodiverse ecosystems and providing nutrition for millions via its fertile floodplains and unparalleled fisheries.
- But over the past few decades, the construction of hydropower dams has undermined the river’s capacity to support life: more than 160 dams operate throughout the Mekong Basin, including 13 on the river’s mainstream, with hundreds more either planned or under construction.
- Besides severing fish migration routes and natural sediment transport throughout the river system, the dams affect the river’s natural seasonal ebb and flow, an ancient rhythm alongside which ecosystems have evolved.
- Communities, scientists and decision-makers now face unprecedented challenges as fish catches dwindle, riverbanks erode, ecosystems collapse and the delta inexorably sinks.

RSPO suspension of Brazil palm oil exporter tied to Mongabay land-grabbing report
- Agropalma, the only Brazilian company with the sustainability certificate issued by the Roundtable on Sustainable Palm Oil (RSPO) — a members organization including palm oil growers, traders, manufacturers, retailers, banks, investors and others — has had its certificate “temporarily suspended” since February.
- In December 2022, Mongabay published a yearlong investigation revealing that more than half of the 107,000 hectares (264,000 acres) registered by Agropalma in northern Pará state derived from fraudulent land titles and even the creation of a fake land registration bureau. Part of the area overlaps ancestral land claimed by Indigenous peoples and Quilombolas — descendants of Afro-Brazilian runaway slaves — including two cemeteries, which is at the center of a seven-year legal battle led by state prosecutors and public defenders.
- Just a few weeks after the publication of the investigation, representatives from the certifiers contacted Quilombola leaders “to understand the denouncements” published by the report, they went to the region and carried out audits in all affected communities; soon after, IBD Certifications Ltd. suspended Agropalma’s RSPO certificate.
- Assurance Services International (ASI), which evaluates the work of certifiers, confirmed that “the report was a reason for ASI to conduct a compliance assessment to IBD, the certifier of Agropalma, at the Certificate Holder’s premises.” University professors hired by ASI as local experts also cited the Mongabay investigation and this reporter when they contacted other key sources quoted in the report, as shown in email correspondence seen by Mongabay.

Human migration to Nepal’s tiger capital adds to conservation challenges
- Chitwan district in central Nepal is home to the eponymous national park that’s come to symbolize the country’s success in growing its tiger population.
- But the district’s human population is also growing, at a rate far higher than the national average, driven by migrants seeking better health services and other urban amenities.
- Conservationists have raised concerns that the growing human presence in the area will pose additional challenges to conservation efforts and put a strain on natural resources such as forests, rivers and land.
- Some warn of an increase in human-tiger conflict, especially involving migrants who don’t share the same traditional knowledge that Indigenous residents have of coexisting alongside the big cats.

For rescued rhino calves in Nepal, return to the wild is a fraught option
- Conservation officials in Nepal are considering what to do with three juvenile rhinos rescued from the wild after being separated from their mothers.
- One option is to return them to the wild in a national park or wildlife reserve with suitable habitat — but with the risk that they could fall prey to tigers. Rhino translocations in Nepal have a poor record — only 38 of 95 rhinos transferred from Chitwan to Bardiya National Park survive, with the rest killed by poachers or farmers.
- That leaves a third option on the table, which is to gift the animals to a foreign country, as part of Nepal’s “rhino diplomacy,” which would leave the young animals facing a lifetime in human company.

Brazil tackles illegal miners, but finds their mercury legacy harder to erase
- As the details of the humanitarian crisis in the Yanomami Indigenous Territory unfold amid action to remove illegal miners, mercury left by the rampant gold mining in the area will remain a lingering toxic legacy.
- A range of solutions is needed to support communities at risk, monitor the situation, assist in the remediation of forests, and prevent continued pollution, experts say.
- New technologies that can filter mercury are under development and testing, but are still far from being viable solutions at the scale that the problem inside the Amazon calls for.

Loss of wetlands threatens South Sumatra’s rich fish-preserving tradition
- Rural communities in South Sumatra, an Indonesian province that’s two-fifths wetlands, have long relied on catching freshwater fish as a source of livelihood.
- The region is renowned for its variety of preserved fish products, which are sold throughout Indonesia.
- However, the wetlands are disappearing at a rapid rate, filled in to make way for oil palm plantations and highways, and threatening the region’s long-running fish-preserving tradition.
- Today, most of the freshwater fish processed here comes from fish farms, and include exotic species not native to the region, which some say doesn’t taste as good as the traditional species.

A freshwater giant is a boon to Bolivian fishers, but an unknown for native species
- Paiche or arapaima (Arapaima gigas) was introduced in Bolivia in 1976 by accident from Peru, and though initially rejected as an exotic species, is today prized by local fishers as a boon to the economy.
- There’s no research on the potential damage caused to riverine ecosystems in the Bolivian Amazon region due to the arrival of paiche, but native fish species have disappeared in some areas where the freshwater giants thrive.
- The Bolivian government has not classified paiche as an invasive species, with some official studies recommending controlling rather than eradicating its population.
- Paiche fishing has also been encouraged as an economic boon to rural communities, where the species accounts for up to 70% of fishers’ catch.

Bangladesh bans suckermouth catfish in light of threats to native fish species
- Considering its aggressive breeding nature and the threats the species poses to native fish populations, the Bangladesh government has recently banned suckermouth fish.
- The suckermouth catfish is mainly an aquarium species that was imported into Bangladesh in the 1980s as an ornamental fish and later introduced into water bodies that are home to the country’s main sources of native fish.
- However, in recent years, the number of suckerfish has increased manifold as local fish species have decreased.
- Earlier, in 2002, Bangladesh banned two other fish species: African catfish and piranhas.

Illegal mines and “floating towns” on the Puré River leave uncontacted Indigenous peoples at risk
- The Yurí-Passé are at risk of coming into contact with illegal miners and drug traffickers, which violates their right and deliberate decision to live in isolation from the Western world.
- According to one study, mercury levels in the blood of communities living along the Caquetá river and its tributaries, such as the Puré River, are much higher than the average.
- Although the Puré River area is located in a protected area, mining activity has increased following a number of threats made against park rangers and an arson attack on a cabin belonging to Colombia’s Natural National Parks authority (PNN) by FARC dissidents. Despite military operations, mining activities continue, with dozens of dredgers thought to be operating on the river.

Element Africa: Lead poisoning, polluted rivers, and ‘calamitous’ mining regulation
- More than 100,000 Zambian women and children are filing a class action lawsuit against mining giant Anglo American for decades of lead poisoning at a mine they say it controlled.
- Illegal gold mining in Ghana is polluting rivers that local communities depend on for water for drinking, bathing and farming.
- A legal case against a village head who allegedly sold off the community’s mining license to a Chinese company has highlighted what analysts call the “confusing” state of mining regulation in Nigeria.
- Element Africa is Mongabay’s bi-weekly bulletin rounding up brief stories from the extractives industry across Africa.

Banned but abundant, gillnets pose main threat to Bangladesh’s river dolphins
- Bangladesh is home to around 2,000 Ganga River dolphins and 6,000 Irrawaddy dolphins, found mostly in the Sundarbans, the world’s largest mangrove forest.
- Both species, considered threatened on the IUCN Red List, run a high risk of entanglement in the gillnets used by local fishers.
- Gillnets are banned in Bangladesh, but remain popular among local fishers, with the government unable to crack down on their use.
- To conserve the freshwater dolphins, the government has embarked on a 10-year action plan that includes declaring more areas as dolphin sanctuaries and raising awareness among fishers.

Reciprocal Water Agreements protect millions of hectares of Bolivian forest
- In return for committing to protect their water producing forests, farming families living in upper watersheds receive incentives to help them develop sustainable production initiatives and to connect their homes to drinking water.
- These incentives are mainly funded by the municipality and from water service providers via a monthly payment made by service users.
- The model has expanded rapidly in Bolivia and is beginning to be replicated in Colombia, Peru, Ecuador and Mexico.

Series of small dams pose big cumulative risk to Amazon’s fish and people
- Small hydropower plants and small-scale fish farming in the Brazilian Amazon basin are often thought to cause negligible environmental harm, yet a new study reveals their cumulative damage is greatly underestimated and can be more impactful than large dams.
- Dwindling fish populations caused by the construction of thousands of small dams has impacted the livelihoods of millions of Indigenous and riverside people who depend on fishing for food, income and culture.
- Small hydropower plants and aquaculture farming are encouraged through economic incentives, simple licensing procedures, and loose requirements for environmental impact assessments before construction.
- More than 350 dam proposals in the Amazon basin are under consideration and 98 medium-sized dams will be prioritized in Brazil as of next year, ensuring the construction of hydropower plants will continue.

Brazilian archbishop is threatened for defending Indigenous peoples — even during Mass
- Dom Roque Paloschi, president of the Indigenous Missionary Council (CIMI) and archbishop of Porto Velho in the state of Roraima, Brazil, has been under attack because he denounced Indigenous people’s rights violations.
- It has always been risky to live in Amazonia and defend social-environmental issues, but Paloschi says the situation has worsened greatly in the last four years — the period that coincides with Jair Bolsonaro’s administration.
- In 2021, 355 attacks against Indigenous people were reported in Brazil — the most since 2013, according to a CIMI report.

Video: In Brazil’s Amazon, Quilombolas fight major palm oil firm for access to cemeteries
- Areas along the Acará River in northern Pará state are at the center of a six-year legal battle where Quilombolas — descendants of Afro-Brazilian runaway slaves — accuse Agropalma, the country’s second-largest palm oil exporter, of land-grabbing over their ancestral lands, including cemeteries, as revealed by Mongabay’s yearlong investigation.
- One of these areas is Our Lady of Battle Cemetery, where Mongabay witnessed in November 2021 Quilombolas celebrating the Day of the Dead for the first time in decades. They say access to the area was hampered since it became Agropalma’s “legal reserve” — the proportion of land that the Brazilian legislation obliges a private property owner to maintain in its natural state — in the 1980s.
- In this video, Mongabay exhibits what is called a “historic moment” and firsthand footage and interviews with Quilombolas going to this cemetery for the first time. This video also has impressive images of palm trees just a few steps from the graves at Livramento Cemetery, completely surrounded by Agropalma’s crops. Quilombolas accuse Agropalma of destroying three-quarters of its area to make way for its plantations; the company denies.
- “To support future lawsuits,” prosecutors in Pará state have cited the Mongabay investigation in their procedures looking into the conflicts between Quilombola communities seeking recognition of their territory and areas occupied by Agropalma.

Shadows of oil in Peru: Shipibo people denounce damage, contamination left by company
- Community members guided a team of journalists to the creeks and land of Canaán de Cachiyacu and Nuevo Sucre, in the district of Contamana in Peru’s Loreto region, to demonstrate how they have been affected by the various spills attributed to the Maple Gas oil company for over 25 years.
- Shipibo community members say that due to contaminated water, they still suffer from illnesses and their farms no longer produce crops. The contract established that the company must comply with environmental protection laws, but Perupetro confirmed that it simply abandoned its operations.
- Mongabay Latam traveled to two Indigenous communities on the banks of the Ucayali River and listened to the concerns of their residents regarding the serious environmental impact that they claim was caused by the operations in Block 31-B and Block 31-E.

Unsustainable fishing to be banned in Irrawaddy dolphin’s Bornean sanctuary
- Indonesia’s fisheries ministry is working with a conservation NGO to draw up plans prohibiting fishing gear considered dangerous to critically endangered Irrawaddy dolphins in the Mahakam River in Borneo.
- The prohibition will apply to a stretch of the Mahakam that was designated a conservation area earlier this year and that’s home to 90% of the estimated 80 Irrawaddy dolphins in the Mahakam.
- Among the practices they’re seeking to ban are fishing with a type of gill net known as rengge, electrofishing, poison fishing, and fixed-net fishing known as sawaran and kombongan.
- Local fishers are said to be supportive of the plan: “They want to continue fisheries but they also want to get rid of unsustainable fishing … because they care about the dolphins as well.”

Video: Stolen Quilombola cemeteries in the Amazon, and the probe that revealed it all
- Palm oil is a ubiquitous ingredient in products ranging from chocolate to cookies to lipstick, but its production in a corner of the Brazilian Amazon may be linked to a land grab from traditional communities, including cemeteries, a year-long investigation by Mongabay’s Karla Mendes has revealed.
- Prosecutors in Pará state have cited the Mongabay investigation in their procedures looking into the conflicts between Quilombola communities seeking recognition of their territory and areas occupied by Agropalma, the country’s second-largest palm oil exporter.
- In November 2021, Mendes went to Pará’s Alto Acará region to investigate these land-grabbing claims, and shares her reporting journey in this behind-the-scenes video, including witnessing a historical Day of the Dead celebration at a cemetery that the Quilombolas say they were locked out of by Agropalma.
- Mendes also witnessed another cemetery hemmed in by Agropalma’s oil palms, where Quilombolas accuse the company of planting the trees over the graves of their loved ones, and investigated other palm oil-linked issues reported by local communities, including water pollution and the threat of displacement from the paving of a trucking road.

In Bangladesh, Ecologically Critical Areas exist only on paper
- Since 1999, Bangladesh has declared 13 biodiversity-rich areas as Ecologically Critical Areas (ECAs) under the Environment Conservation Act.
- The government has failed to conserve the ECAs so far, despite some protection measures undertaken in Saint Martin’s Island, Tanguar Haor, Hakaluki Haor, Cox’s Bazar and Sonadia Island.
- The government has permitted industries to be set up in one of the major ECAs, the Sundarbans, including an oil refinery and coal-fired power plant.
- Authorities blame inadequate budget allocation and staff shortage, which environmentalists describe as a “lack of interest of the government.”

Major Brazil palm oil exporter accused of fraud, land-grabbing over Quilombola cemeteries
- Agropalma, the only Brazilian company with the sustainability certificate issued by the Roundtable on Sustainable Palm Oil (RSPO), is accused of a wide range of land-grabbing allegations in Pará state.
- The claims allege that more than half of the 107,000 hectares (264,000 acres) registered by Agropalma was derived from fraudulent land titles and even the creation of a fake land registration bureau, which is at the center of a legal battle led by state prosecutors and public defenders.
- Quilombola communities say that part of the area occupied by Agropalma overlaps with their ancestral land, including two cemeteries visited by Mongabay. In one of them, residents claim that just one-quarter of the cemetery remains and that the company planted palm trees on top of the graves, which the company denies.
- There are also other financial interests in the land at stake, researchers say, pointing to the company’s moves into bauxite mining and the sale of carbon credits in the areas subject to litigation, further intensifying the disputes.

Sulawesi hydropower dam could flood important archaeological sites
- A Jakarta-based hydropower company aims to dam the Karama River in western Sulawesi as part of a clean energy project to help wean the country off of coal.
- An inundation map shows that the dam could raise the river’s water level to 62 meters (203 feet) above sea level, potentially damaging important archaeological sites in the Karama valley.
- In 2020, archaeologists announced they had found Indonesia’s oldest-known rice strain in the Karama valley, an important region in the Austronesian expansion, thought to be one of the most expansive prehistoric human migrations.

Threatened cloud forests key to billions of dollars worth of hydropower: Report
- Payments for the provision of water by cloud forests for hydropower could produce income for countries and bolster the case for the forests’ protection, a new report reveals.
- These fog-laden forests occur on tropical mountains, with about 90% found in just 25 countries.
- Cloud forests are threatened by climate change, agricultural expansion, logging and charcoal production, and studies have shown that the quality and quantity of water that these forests generate is tied to keeping them healthy.

Dhaka’s ailing sewage system threatens human and environmental health
- Existing sewage treatment plants in Dhaka treat only 30% of all sewage waste.
- Emerging pollutants such as antibiotics, microplastics, detergents, toothpastes, shampoos and lotion are found in Dhaka’s urban rivers and lakes.
- Microplastics are also found in fish, snails, crabs and sediments of the Buriganga River in Dhaka.
- City authorities suggest installing small treatment plants in residential buildings.

‘They paid for it with misery’: Q&A with Chile dam critic Jose Marihuan Ancanao
- Jose Marihuan Ancanao, president of the Ayin Mapu La Peña community, spoke to Mongabay’s Maxwell Radwin about the impact of hydropower plants in parts of the Chilean Andes that are home to Indigenous people with a spiritual connection to rivers and the surrounding mountains.
- Marihuan was relocated in the early 2000s by a different hydropower plant and, although relocation isn’t a threat this time around, is witnessing the construction of another mega dam near his community.
- The 90-megawatt Rucalhue power plant has resulted in the felling of nationally protected trees sacred to the Pehuenche and, once finished, would flood some ancestral land.

Dam construction ignites Indigenous youth movement in southern Chile
- Dam construction on the Bío Bío watershed has plagued Indigenous Mapuche-Pehuenche communities in south-central Chile for decades, with many families having to relocate due to flooding of ancestral lands.
- The 90-megawatt Rucalhue hydropower plant, located near the town of Santa Bárbara, is the latest project causing controversy among local communities, who say they’re sick of battling infrastructure projects that disrespect their culture and traditions.
- Young people have been particularly outspoken against the project, staging sit-ins at the work site, sending petitions to government agencies, and helping organize a local plebiscite.
- Hydropower plants, while less polluting than many other forms of energy generation, still require the clearing of trees and the disrupting of river flows, which can have a significant impact on surrounding ecosystems.

Protecting the peatlands and woodlands in Angola’s ‘source of life’
- As negotiations over slowing climate change unfold at the COP27 climate summit in Egypt, a group of scientists and conservationists is pushing for recognition of the Angolan Highlands as a vital carbon sink.
- The network of rivers, lakes and peatlands surrounded by miombo woodland in these highlands together maintain the year-round flow of water into the Okavango River Basin, and ultimately the wildlife-rich Okavango Delta in Botswana.
- Isolated for decades by civil war, in peacetime the Angolan Highlands have increasingly attracted returning populations to log, drain its bogs, and clear forests for agriculture.
- The National Geographic Okavango Wilderness Project is pushing for protection of vital parts of the highlands to safeguard their role as a “water tower” for countries in the region — and prevent the peatlands from turning from a carbon sink into a carbon source.

Shady contracts, backdoor deals spur illegal gold mining in Bolivian Amazon
- In the northern regions of the department of La Paz, Bolivia, illegal gold mining has led to widespread deforestation and mercury pollution.
- The Bolivian Amazon, including protected areas like Madidi National Park, face a growing risk of environmental destruction in the years to come from this ever-expanding industry.
- Mongabay visited multiple illegal mine sites, interviewed the investors behind them, and reviewed their work contracts to better understand how the industry operates unchecked in secluded parts of the Amazon.
- The investigation found that miners take advantage of the government’s lack of resources and slow-moving bureaucracy to avoid accountability for the harm they do to the environment; they also rely on illegal, backdoor agreements with well-funded foreign investors to maximize production.

Fish eggs return to Bangladesh’s Halda River following conservation efforts
- The Halda River, considered the world’s only natural gene bank for several pure Indian carp species, as well as home to dozens of endangered Ganges River dolphins, has made a comeback after fish eggs all but disappeared from the river several years ago.
- Historical records say around 4,000 kilograms (8,818 pounds) of fish eggs could be found in the river in 1941, but that number nearly hit zero in 2016 due to overexploitation and industrial pollution.
- Since 2018, the Bangladesh government has made robust conservation efforts, including steps to declare the river an Ecologically Critical Area and fish heritage site.
- In 2020, about 424 kgs (935 lbs) of fish eggs were found in the river; however, yields have since fallen after an unexpected tropical cyclone, Amphan, triggered salinity intrusion and there was low rainfall during the monsoons.

Saving the economically important hilsa fish comes at a cost to Bangladesh fishers
- Many fishers across Bangladesh say they still haven’t received the compensation promised by the government during a three-week ban on fishing of hilsa, the country’s most important fish.
- The ban ends on Oct. 28, and the government was supposed to hand out 40-kilogram (88-pound) rice packages to eligible fishers at the start of it, but some of the aid may have allegedly been embezzled by local officials.
- Almost half a million fishers are directly involved in the hilsa fishery in Bangladesh, with another 2 million indirectly involved; hilsa accounts for an eighth of total fish production and more than 1% of GDP in Bangladesh.
- In light of the fish’s importance, the government has since the 2000s enforced two bans a year, to allow the fish to breed and to protect the juveniles.

For water quality, even a sliver of riverbank forest is better than none
- Costa Rica currently has laws in place to protect riparian zones along waterways, but they are unevenly enforced.
- Implementing these laws, even at the bare minimum of maintaining a 10-meter (33-foot) strip of riverbank vegetation, could lead to benefits for water quality and people, according to a new modeling study.
- The study shows that a small increase in forest cover around waterways can reduce nutrient and sediment runoff, especially on steeper lands and near farms and cities.
- Increases in water quality from riparian zones would improve drinking water for vulnerable populations in Costa Rica.

Broken houses and promises: residents still in poverty near massive diamond project
- More than 14 years since the discovery of the Marange diamond fields, one of the world’s largest diamond-producing projects, relocated residents and locals living near the mines are still living in poverty.
- The government and mining companies promised homes, electricity, water, employment, social services and compensation, but residents and civil society organizations say they have still not received many of these promises since Mongabay last reported on the project in 2016.
- Rivers, which residents rely on for their livestock, vegetable plots and cleaning, are polluted and silted by artisanal miners seeking additional income and opportunities to escape poverty.
- Previously, foreign companies in Zimbabwe had to either give the majority of their shares to locals or divest money into community trusts. However, this promise has fallen short since current president, Emmerson Mnangagwa, reversed the law.

Habitat loss, climate change threaten Bangladesh’s native freshwater fishes with extinction
- There were at one time more than 300 native freshwater fish species in Bangladesh, but many have disappeared while others are on the verge of extinction due to habitat loss, overfishing, pollution and climate change.
- Open rivers and other bodies of water in Bangladesh are dwindling fast due to development interventions, unplanned urbanization, encroachment and siltation, which are destroying the habitats of indigenous fish species.
- According to the International Union for Conservation of Nature (IUCN), the statuses of 64 freshwater fish species in Bangladesh range from vulnerable to critically endangered while 30 have become extinct in the wild during the last 30 to 40 years.
- Bangladesh Fisheries Research Institute (BFRI) has so far revived 37 out of 67 species that disappeared from the wild through captive breeding programs and conservation efforts.

Podcast: Science that saves free-flowing rivers & rich biodiversity
- Rapid biological surveys are a well-known way to establish the richness of an ecosystem and advocate for its conservation.
- A corps of scientists and conservationists has used such surveys to prove that the rush to build thousands of new hydroelectric dams in southern Europe threatens to drown a rich heritage, with impressive results.
- A proposal to dam one of the last free-flowing rivers in Europe was halted on the basis of one such survey, in addition to much conventional activism, and the group has since turned its focus to other threatened rivers in the region.
- “It might be the highest density of trout species on Earth,” podcast guest Ulrich Eichelmann says of these rivers, which also host a wealth of bugs, bats, birds and beauty — plus a deep cultural heritage.

“Largest of its kind” dam in Cameroon faces backlash from unimpressed fishmongers
- Cameroon is constructing a new 420-megawatt capacity hydroelectric dam in Batchenga, aiming to reduce the country’s significant energy deficit by 30%.
- The massive dam project is impacting several villages where fishing is an essential part of the local economy. Several professional bodies, including fishmongers, fishermen and restaurant owners, have lost their livelihoods due to the dam’s construction.
- Fishmongers in one nearby village, Ndji, are becoming increasingly desperate for proper compensation as the amounts paid by the Nachtigal Hydro Power Company is not enough to make ends meet, they say.
- Civil society organizations are also accusing Nachtigal of seriously violating environmental standards during dam construction, despite the company continuously receiving environmental compliance certificates by the government.

Element Africa: Diamonds, oil, coltan, and more diamonds
- Offshore diamond prospecting threatens a fishing community in South Africa, while un-checked mining for the precious stones on land is silting up rivers in Zimbabwe.
- In Nigeria, serial polluter Shell is accused of not cleaning up a spill from a pipeline two months ago; the company says the spill was mostly water from flushing out the pipeline.
- Also in Nigeria, mining for coltan, the source of niobium and tantalum, important metals in electronics applications, continues to destroy farms and nature even as the government acknowledges it’s being done illegally.
- Element Africa is Mongabay’s bi-weekly bulletin rounding up brief stories from the commodities industry in Africa.

The mine leak was bad. The DRC and Angola’s response are no better, report says
- In July 2021, an Angolan diamond mine leaked large amounts of polluted water into the Kasai River Basin which stretches across Angola and the Democratic Republic of Congo.
- Twelve people were killed, a further 4,400 fell ill and an estimated 1 million more were affected by the polluted water.
- Fourteen months later, the DRC government has not released full results of tests conducted on the rivers, but a ban on drinking the water from the Kasai and Tshikapa rivers remains in place.
- An independent report published in September 2022 has found that the leak killed off much of the rivers’ aquatic life, with severe and ongoing impacts on river-dependent communities.

Catfished: New species described from DRC after mistaken identity
- Scientists recently identified a new species of air-breathing catfish, Clarias monsembulai, in the Democratic Republic of Congo’s Salonga National Park — the first new species of catfish in the Clarias genus to be described in 42 years.
- It was named after Congolese researcher Raoul Monsembula, who collected samples of the species in 2006 and 2010 without realizing at the time that the fish was unknown to science.
- Experts say that species discoveries are very common in Salonga National Park due to the region’s rich biodiversity as well as the limited amount of research being done there.
- However, the area also faces numerous threats, including poaching and the possibility of fossil fuel extraction.

Putting a price on water: Can commodification resolve a world water crisis?
- In 2018, a trader listed water on the Chicago Mercantile Exchange and then in 2020 introduced a futures market so consumers can factor the cost of water into their investment plans. After a slow start, traders expect the market to grow more strongly in 2023.
- Some analysts see this as a positive step, allowing market adjustments to provide consumers with the cheapest and most efficient way of buying water. Others disagree, saying that water, like air, should not be commodified as it is a fundamental human right and must be available to all.
- Critics fear that creating a water market is a first step toward a future in which just a few companies will be able to charge market rents for what should be a free natural resource. Huge questions remain over water allocations for industry, agribusiness and smallholders, cities, and traditional and Indigenous peoples.
- The clash between these economic and socioenvironmental worldviews isn’t just occurring internationally. The conflict over water regulation is evident in many nations, including Brazil, which lays claim to the world’s biggest supply of freshwater, and Chile, currently suffering from its most severe drought ever.

A new method assesses health of Chile’s headwaters, and it’s not good news
- Headwaters are vital to ecosystem health and have been difficult to study, but now a group of researchers has developed a new method that relies on remote sensing to assess headwater vulnerability at multiple scales.
- Using the method, they assessed 2,292 headwaters in south-central Chile and found nearly two-thirds of the headwaters were affected by climate change and 23% by land use and land cover change; all of the headwaters were experiencing drought conditions.
- Chile has been in the grip of a megadrought for more than a decade now, with precipitation in south-central Chile decreasing by nearly 40% since 2010. Experts say water management suffers under water privatization, enshrined by the 1980 Constitution.
- Chile and Argentina host the only temperate rainforests in South America, with high levels of endemism, but nearly half of the native forests in the coastal zone of central-southern Chile have been replaced by tree plantations.

Better management of shared waterways could benefit economy in Bangladesh, India
- Bangladesh and India signed a protocol in 1972 for using waterways through 11 different routes to carry goods. Only three of the designated 11 routes are in regular use at present, as most of the routes lack depth for the navigability of large vessels.
- A 2016 World Bank study showed that the cost to carry goods via the waterways is cheaper compared to good transportation via railways and roads. However, only about a quarter of Bangladesh’s waterways are navigable by mechanized vessels during the monsoon season and during the dry season, the navigable distance shrinks even further.
- The Bangladeshi government recently awarded a $71 million contract to a Chinese company to dredge rivers as part of a World Bank-financed project to boost transport routes between mainland India and its northeastern states via Bangladesh.
- Experts suggest that, besides taking on extensive dredging work, the rivers need proper management like maintenance of channels and embankment protection, otherwise silt will close the channels in a short time.

Nepal’s mugger crocs face ‘senseless’ turf war over dwindling fish resources
- The decline in fish stocks in Nepal’s Koshi River threatens the mugger crocodile, a species already under pressure from historical poaching and habitat loss.
- A new study shows the crocodiles are increasingly encroaching into community-run fish farms in the buffer zone of the Koshi Tappu Wildlife Reserve in search of food, raising the risk of conflict with humans.
- At the same time, they face competition from gharials, a predominantly pescatarian crocodile that’s being introduced back into the Koshi as part of a government-run conservation program.
- “Making a vulnerable species compete with its critically endangered cousin doesn’t make sense,” says one of the authors of the study.

Humans are dosing Earth’s waterways with medicines. It isn’t healthy.
- Medicines, chemical formulations that alleviate much human suffering, can also be significant pollutants, with active ingredients often excreted from the human body and entering waterways. However, the intensity of this contamination and of its impacts has not been well researched.
- A study published in June analyzed samples from 1,000 sites along waterways in more than 100 nations, looking for 61 active pharmaceutical ingredients (APIs). Their results suggest that concentrations of at least one API breached safe levels for aquatic life at nearly 40% of sites tested globally.
- Some pharmaceuticals are endocrine disruptors (EDCs), which mimic hormones and interfere harmfully with the endocrine system in various organisms, while other drugs are linked to antimicrobial resistance (AMR), considered one of the biggest threats to human health and well-being today.
- Despite growing awareness among scientists, there is no systematic reporting of waterway pollution by medicines, or impacts on ecological health. Currently, many human-excreted pharmaceuticals enter directly into waterways, or pass through existing wastewater treatment facilities. Fixing the problem will be very expensive.

Rare turtles hatch from eggs rescued from flood-prone Nepal riverbank
- Conservationists in Nepal successfully rescued and hatched hundreds of Indian narrow-headed softshell turtles (Chitra indica) from a riverbank in Chitwan National Park.
- The nesting sites were hit by a flash flood three weeks after the eggs were removed; 375 of the 496 eggs hatched successfully at Chitwan’s gharial breeding center after nearly seven weeks.
- Narrow-headed softshell turtles are an endangered species, threatened by hunting for their meat and consumption of their eggs, as well as degradation of their habitat, but aren’t the subject of any dedicated conservation programs in Nepal.
- Conservationists have called on the government to focus more attention on the species, saying it wouldn’t cost much and would require only the will to act.

Cambodian mega dam’s resurrection on the Mekong ‘the beginning of the end’
- Cambodian authorities have greenlit studies for a major hydropower dam on the Mekong River in Stung Treng province, despite a ban on dam building on the river that’s been in place since 2020.
- Plans for the 1,400-megawatt Stung Treng dam have been around since 2007, but the project, under various would-be developers, has repeatedly been shelved over criticism of its impacts.
- This time around, the project is being championed by Royal Group, a politically connected conglomerate that was also behind the hugely controversial Lower Sesan 2 dam on a tributary of the Mekong, prompting fears among local communities and experts alike.
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow.

Latest water-sharing deal between Bangladesh, India is ‘drop in the ocean’
- Bangladesh and India share 54 rivers that flow down from the Himalayas to the Bay of Bengal, chief among them the Ganges and the Brahmaputra.
- Managing the flow of water both upstream and down is crucial for agriculture, navigation, inland fisheries, and keeping saltwater intrusion at bay in Bangladesh, but is undermined by a lack of water-sharing agreements.
- The Bangladeshi and Indian prime ministers recently signed an agreement on sharing water from the Kushiara River for irrigation, but experts say this is nothing special in the grand scheme of things.
- They’ve called on the governments of both countries to push for securing long-term treaties on water sharing from major rivers like the Ganges and the Teesta, which in the latter case has been hobbled by local politics in India.

In the Mekong Basin, an ‘unnecessary’ dam poses an outsized threat
- A dam being built in Laos near the border with Cambodia imperils downstream communities and the Mekong ecosystem as a whole, experts and affected community members say.
- The Sekong A dam will close off the Sekong River by the end of this year, restricting its water flow, blocking vital sediment from reaching the Mekong Delta in Vietnam, and cutting off migration routes for a range of fish species.
- Experts say the energy to be generated by the dam — 86 megawatts — doesn’t justify the negative impacts, calling it “an absolutely unnecessary project.”
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow.

Wildlife lover and artist records 5 decades of change on iconic U.K. river
- As a youngster in the 1960s, Janet Marsh spent hours beside England’s Itchen River while her father fished, closely observing the teeming life of the small English stream. Her love of wildlife there, and desire to draw what she saw, helped inspire her to become an accomplished artist.
- In 1979, she published her “nature diary,” profiling the life of her beloved river with exquisite watercolor illustrations along with astute observations. She also added her voice and images to a campaign protesting the extension of a motorway over the river. A selection of her Itchen illustrations are featured in this story.
- Decades later, Marsh revisits the river with Mongabay, noting that the motorway itself, though noisy, hasn’t caused widespread damage, with wildlife proving resilient. Far more harmful has been steady human development, with pollution from fish farms, septic tanks and cropland runoff all gradually killing the river.
- The Itchen and other rivers like it have been called England’s coral reefs due to their biodiversity. They are like small watersheds the world over that get little attention, but where the web of life is unraveling due to human-induced change. In such unsung places, local activists often step up to document and preserve nature.

Chinese companies criticized for mercury pollution in Cameroon
- Civil society groups have raised the alarm over pollution of rivers in eastern and northern Cameroon by gold mining companies.
- The Centre for Environment and Development says two Chinese companies, Mencheng Mining and Zinquo Mining, are allowing significant amounts of mercury and cyanide to spill into watercourses in the East Region.
- Amalgamation, the process of using mercury to separate gold from the alluvial mud it’s found in here, is commonplace in Cameroon and elsewhere, despite the extreme toxicity of this chemical.
- CED says the run-off from gold-washing is putting the health of miners, including many young children, as well as local residents at risk.

Java communities rally as clock ticks on cleanup of ‘world’s dirtiest river’
- A national program to transform Java’s Citarum River into a source of drinking water expires in 2025.
- A reforestation program in uplands near the source of the river is drawing on community volunteers.
- West Java Governor Ridwan Kamil tells Mongabay that residents will see improved water quality by 2025 and that there is political will to tackle the crisis.

Engineers bet on a miracle to bring Nepal’s holy river back to life
- Officials in Nepal hope to start reviving the sacred Bagmati River that runs through Kathmandu with the help of a rainwater reservoir.
- The Dhap Dam is expected to go into operation in October, when it will start providing water for the Bagmati during the dry season — a period when the river can shrink to just 3% of its monsoon peak.
- Unlike most other rivers in Nepal, the Bagmati doesn’t flow from the Himalayan icepack, and instead is fed by springs that, in recent decades, have dried up as a result of urbanization.
- But with the river so polluted that a study declared it “not suitable for aquatic life,” even those behind the project acknowledge that the best they can hope for is to improve its condition, not bring it back to life.

Mining the Mekong: Land and livelihoods lost to Cambodia’s thirst for sand
- Sand mining by politically connected companies has been blamed for the collapse of riverbanks along the Mekong and Bassac rivers in Cambodia.
- Affected residents say they’ve lost their homes and their livelihoods, based on fishing and tourism, as a result of the mining, but see no positive changes or hope for justice.
- The government, however, denies that the dredging is responsible for the erosion, with a senior official saying that it actually helps stabilize the riverbanks — a claim that scientists say is “a myth.”
- This story was supported by the Pulitzer Center’s Rainforest Investigations Network where Gerald Flynn is a fellow.

Gharials, most distinctive of crocs, are most in need of protection, study shows
- Slender-snouted gharials are among the most distinctive of the world’s crocodilians, and thus the most in need of conservation action, a new study suggests.
- The study authors scored all 28 existing crocodilian species from around the world — from the Chinese alligator to the Orinoco crocodile — on their functional distinctiveness and threat ranking to arrive at a metric.
- Known as EcoDGE (ecologically distinct and globally endangered), the metric suggests a third to a half of crocodilian functional diversity could be lost over the next century.
- Conservation scientists say the study highlights a new perspective of identifying the crocodilian species most in need of urgent conservation action.

Sand mining a boon for illegal industry at expense of Bangladesh’s environment
- Demand from Bangladesh’s construction industry for sand has led to a boom in unregulated and illegal mining from rivers, activists say.
- An estimated 60-70% of the mined sand in the country is assumed to be illegally mined, extracted from rivers nationwide without any environmental or hydrological considerations.
- Excessive sand mining is destroying the ecology of river systems as well as their biodiversity, and increasing the risk of river erosion, a study says.
- A 2010 law meant to keep sand mining in check has instead allowed the illegal industry to thrive, critics say, thanks to weak punishment, lax enforcement, and the involvement of politically connected players in the business.

Elevated homesteads give hope to flood-hit communities in Bangladesh
- Increasingly severe flooding in Bangladesh threatens the homes and livelihoods of some 10 million people who live on river islands known as chars.
- The rate of erosion of these chars has increased in recent years amid an intensified monsoon season that swells the volume of the Ganges, Brahmaputra and Meghna rivers where the low-lying chars are located.
- As an adaptation measure the government and NGOs are supporting char communities to raise the height of their homesteads to protect themselves during the monsoon.

In Congo, a carbon sink like no other risks being carved up for oil
- New research has revealed that the peatlands of the Congo Basin are 15% larger than originally thought.
- This area of swampy forest holds an estimated 29 billion metric tons of carbon, which is the amount emitted globally through the burning of fossil fuels in three years.
- Beginning July 28, the government of the Democratic Republic of Congo, where two-thirds of these peatlands lie, will auction off the rights to explore for oil in 27 blocks across the country.
- Scientists and conservationists have criticized the move, which the government says is necessary to fund its operations. Opponents say the blocks overlap with parts of the peatlands, mature rainforest, protected areas, and a UNESCO World Heritage site.

Overexploitation threatens Amazon fisheries with collapse, study warns
- Fishers in the Amazon Basin are catching smaller species of fish than before, indicating overexploitation of the region’s aquatic biodiversity, a new study says.
- The study looked at fish catch data from six river ports (three each in Peru and Brazil) to conclude that “fisheries are losing their resilience and progressing towards possible collapse.”
- Researchers say freshwater fish stocks in the Amazon have never been a priority for conservation or monitoring, which has allowed this decline to occur over the course of decades.
- The loss of larger fish deprives communities for whom fish is a dietary staple of important nutrients, as well as impoverishes the wider river ecosystem.

In restoring polluted rivers, Indonesia looks at restocking endemic fish
- Two reported mudflows overflowed the Serayu River on the Indonesian island of Java within the space of a week earlier this year, mucking its waters and killing off fish.
- The incidents have raised calls from conservationists and fishers for restoration and fish restocking efforts in the river.
- Fish restocking has been carried out for several decades in Indonesian rivers, mainly as an effort to increase fisheries productivity and fish populations in inland waters such as rivers, reservoirs and lakes.
- But experts say these restocking efforts often emphasize ceremony at the expense of measures to ensure success, such as post-monitoring assessment.

‘The volume of water is beyond control’: Q&A with flood expert M. Monirul Qader Mirza
- An early start to the monsoon and unusually heavy rains have caused massive flooding in northeastern Bangladesh, leaving millions of people stranded in floodwaters.
- The Meghna River Basin is accustomed to these flash floods, but the scale of the disaster this year has been compounded by human encroachment and development in the watershed region, said M. Monirul Qader Mirza, a water management expert.
- In an interview with Mongabay, Mirza emphasized the need for infrastructure planning to consider river and rainfall dynamics to mitigate flood risk, and to have an early-warning system in place to minimize damage.
- Mirza also said that identifying the role of climate change in the problem is complex and requires extensive studies and modeling, but added it’s indisputable that rainfall patterns have become increasingly erratic.

Beyond boundaries: Earth’s water cycle is being bent to breaking point
- The hydrological cycle is a fundamental natural process for keeping Earth’s operating system intact. Humanity and civilization are intimately dependent on the water cycle, but we have manipulated it vastly and destructively, to suit our needs.
- We don’t yet know the full global implications of human modifications to the water cycle. We do know such changes could lead to huge shifts in Earth systems, threatening life as it exists. Researchers are asking where and how they can measure change to determine if the water cycle is being pushed to the breaking point.
- Recent research has indicated that modifications to aspects of the water cycle are now causing Earth system destabilization at a scale that modern civilization might not have ever faced. That is already playing out in extreme weather events and long-term slow-onset climate alterations, with repercussions we don’t yet understand.
- There are no easy or simple solutions. To increase our chances of remaining in a “safe living space,” we need to reverse damage to the global hydrological cycle with large-scale interventions, including reductions in water use, and reversals of deforestation, land degradation, soil erosion, air pollution and climate change.

Giant stingray caught in Cambodia is world’s largest freshwater fish
- The largest freshwater fish ever recorded was captured last week in Cambodia’s stretch of the Mekong River: a giant freshwater stingray measuring 4 meters (13 feet) from snout to tail and weighing 300 kilograms (661 pounds).
- The discovery occurred in a stretch of the Mekong known for its diversity of freshwater habitats that support crucial fish-spawning grounds and migration corridors and provide refuges for other mega fish species and threatened species, such as Irrawaddy dolphins and giant softshell turtles.
- Local fishers collaborating with researchers to document the area’s underwater life alerted a monitoring team who measured the ray, fitted it with an acoustic tag to learn more about its behavior, and facilitated its release back into the wild.
- Experts say the find emphasizes what’s at stake in the Mekong, a river that’s facing a slew of development threats, including major hydropower dams that have altered the river’s natural flow. “It is a signal to us to protect our rivers and lakes,” they say.

A tale of successes and new challenges in Senegal: Q&A with ICCA coordinator Salatou Sambou
- The Kawawana conserved area (ICCA) was created by a group of Indigenous Jola fishers in Casamance. After almost ten years, they have succeeded in restoring an area where biodiversity had all but disappeared.
- Now that biodiversity and resources have recovered, life in the village has become more secure. The model’s success has also encouraged young people to return and to renew their commitment to its conservation.
- But the ICCA has also come up against many challenges, such as the COVID-19 pandemic, state indifference to poachers and climate change, since Mongabay’s last reporting in 2018.
- Mongabay interviewed Salatou Sambou, ICCA coordinator involved in the Kawawana conserved area, about the recent successes and challenges the ICCA is facing.

The war on journalists and environmental defenders in the Amazon continues (commentary)
- Journalists in Brazil and around the world are devastated about the tragic end of a 10-day search for British journalist Dom Phillips and Indigenous advocate Bruno Pereira in the Amazon rainforest near the Brazil-Peru border in northern Amazonas state. Bodies believed to be theirs were found on June 15 after a huge outcry against the federal government’s inaction following their disappearance. Indigenous patrols bravely conducted their own search while the government did little.
- The murders of Dom and Bruno are emblematic of the plight of journalists across Latin America as violence against both journalists and activists in the region escalates. It also raises an alarm for the need to protect reporters as we report on environmental crime from Nature’s frontline.
- But these crimes will not stop us: Exposing wrongdoing across Brazil’s critical biomes — from the Mata Atlantica to the Cerrado to the Amazon — is more necessary than ever now. At the same time, demanding justice for the murder of Bruno and Dom became a fight for all of us.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Proposed copper and gold mine threatens the world’s ‘second Amazon’ in PNG
- A proposed copper and gold mine threatens the biologically and culturally diverse Sepik River Basin in western Papua New Guinea, according to community leaders and conservationists.
- They’ve raised concerns about the impact that potentially toxic waste from the mine would have on the region’s forests and waterways, which are critical to sustaining human, animal and plant life in this region.
- Proponents of the mine say it would bring jobs, infrastructure and development to the region’s communities.
- Today, a renewed campaign to list the Sepik River Basin as a UNESCO World Heritage Site is gaining momentum and would permanently keep projects like the mine at bay, say organizers of the movement.

For Thai fishers facing dwindling catches, a Lao dam looms large
- Laos plans to build a $2 billion, 684-megawatt dam on the Mekong River, just 2 kilometers (1.25 miles) from the Thai border.
- The proposed Sanakham dam is the latest in a cascade of more than a dozen dams operating on the Mekong mainstream in China and Laos.
- Fishers in Thailand say they’ve already seen their catches decimated with each new dam built upstream, in particular the Xayaburi dam that went online in Laos in 2019.
- The Sanakham project is still in a “prior consultation” process with the Mekong River Commission, an advisory intergovernmental agency.

Illegal mining threatens one of the last forest links between the Andes and Ecuador’s Amazon
- Legal and illegal mining is destroying Alto Nangaritza, one of the last well-preserved forest links between the Andes and Ecuadorian Amazon.
- After the construction of roads connecting remote Indigenous communities to the broader provincial network, miners quickly moved into the resource-rich region with illegal materials and pollutants to dredge rivers and extract gold.
- Monitoring environmental damage and mining is difficult and rare due to the high level of conflict preventing authorities and environmental watchdogs from entering the area, says the ministry of the environment.
- Some Indigenous Shuar people who live in the upper region of the Nangaritza River have also started to extract gold in order to increase their income.

Suspension of Chinese miner for pollution in DRC points to wider problem
- The Democratic Republic of Congo’s environment minister recently suspended the operations of a Chinese company for polluting a major tributary of the Congo River in Tshopo province.
- Xiang Jiang Mining is accused of polluting the Aruwimi River, mining for gold without first conducting an environmental impact assessment, and failing to secure work permits for its foreign employees.
- In nearby South Kivu province, six other mining companies were suspended for similar offenses last year, pointing to a worrying pattern of companies ignoring mining and environmental regulations.

Riders of the lost waves: Surfing, and saving, Brazil’s pororocas
- Surfers and volunteers are mapping out tidal bores — spectacular waves that travel dozens of kilometers upriver from Brazil’s Atlantic coast — in an effort to preserve the phenomenon and build a tourism industry around it.
- The best-known pororocas in Brazil are in the states of Amapá, Maranhão and Pará, and once included the Araguari River, site of the 2006 world record for the longest distance surfed (nearly 12 kilometers, or 7.5 miles).
- But the Araguari pororoca disappeared in 2014 when the river’s mouth silted over, the result of development upriver that included livestock ranching and dam building.
- Enthusiasts of the phenomenon now want to develop a Pororoca Park that they say will boost tourism on the Amazon coast, providing income for the Indigenous and traditional communities where many of the remaining pororoca sites are found.

Meet the 2022 Goldman Environmental Prize Winners
- This year marks the 33rd anniversary of the prestigious Goldman Environmental Prize, which honors one grassroots activist from each of the six inhabited continents.
- The 2021 prize winners are Alex Lucitante and Alexandra Narvaez from Ecuador; Chima Williams from Nigeria; Julien Vincent from Australia; Marjan Minnesma from the Netherlands; Nalleli Cobo from the United States; and Niwat Roykaew from Thailand

In the Mekong’s murky depths, giants abound, new expedition finds
- An underwater expedition into the deepest pools in the Mekong River has confirmed the presence of giant freshwater fish, fish migration routes, and high volumes of discarded fishing gear and plastic waste.
- The international team of underwater explorers, local fish biologists and fishermen used deep-sea camera technology to document the ecological value of the unique area in northeastern Cambodia, which is characterized by 80-meter-deep (260-foot) pools, flooded forests and braided river channels.
- But just as researchers reveal the value of its biodiversity, food security and fisheries livelihoods, the area faces a new threat: earlier this year, feasibility surveys began for a hydropower dam planned for directly upstream of the deep-pool habitats.
- According to the expedition team, construction of the Stung Treng dam would have “devastating ecological effects and could seriously threaten local food security in an area of the world already impacted by changing climate.”

China-funded dam could disrupt key Argentine glaciers and biodiversity
- Two dams are being built on the 380-kilometer (236-mile) Santa Cruz River in Argentina’s Patagonia, threatening glacier movements and endemic wildlife that rely on the surrounding wetlands.
- Several Indigenous Mapuche communities, who consider the area to be important to their cultural heritage, say officials failed to consult with them before starting the project.
- Despite protests, lawsuits and court orders to pause construction, work on the complex, part of the China-funded Belt and Road Initiative, has continued.

Freshwater planetary boundary “considerably” transgressed: New research
- Earth’s operating systems have stayed in relative balance for thousands of years, allowing the flourishing of civilization. However, humanity’s actions have resulted in the transgressing of multiple planetary boundaries, resulting in destabilization of those vital operating systems.
- This week scientists announced that humanity has transgressed the freshwater planetary boundary. Other boundaries already crossed are climate change, biosphere integrity, biogeochemical cycles (nitrogen and phosphorous pollution), land-system change, and novel entities (pollution by synthetic substances).
- In the past, the freshwater boundary was defined only by “blue water” — a measure of humanity’s use of lakes, rivers and groundwater. But scientists have now extended that definition to include “green water” — rainfall, evaporation and soil moisture.
- Scientists say soil moisture conditions are changing from boreal forests to the tropics, with abnormally dry and wet soils now common, risking biome changes. The Amazon, for example, is becoming far dryer, which could result in it reaching a rainforest-to-savanna tipping point, releasing large amounts of stored carbon.

The world’s dams: Doing major harm but a manageable problem?
- Dam construction is one of the oldest, most preferred tools to manage freshwater for various uses. The practice reached a peak internationally in the 1960s and ’70s, but in recent years dam construction has faced increasing global criticism as the hefty environmental price paid for their benefits piles up.
- The flows of most major waterways have been impacted by dams globally. Only 37% of rivers longer than 1,000 km (620 mi) remain free-flowing, and just 23% flow uninterrupted to the sea. Natural flows will be altered for 93% of river volume worldwide by 2030, if all planned and ongoing hydropower construction goes ahead.
- This global fragmentation of rivers has led to severe impacts. Dams have contributed to an 84% average decline in freshwater wildlife population sizes since 1970. More than a quarter of Earth’s land-to-ocean sediment flux is trapped behind dams. Dams also impact Earth’s climate in complex ways via modification of the carbon cycle.
- But dams are needed for energy, agriculture and drinking water, and are an inevitable part of our future. Lessons on how to balance their benefits against the environmental harm they do are already available to us: removing some existing dams, for example, and not building others.

Death of last river dolphin in Laos rings alarm bells for Mekong population
- Earlier this year, the last Irrawaddy river dolphin in a transboundary pool between Cambodia and Laos became entangled in fishing gear and died, signifying the extinction of the species in Laos.
- The transboundary subpopulation had dwindled from 17 individuals in 1993, with experts blaming a range of factors — from the use of gill nets and other illegal fishing practices, to overfishing, genetic isolation, and the effects of upstream dams on river flow and prey availability.
- With the loss, there are now just an estimated 89 Irrawaddy dolphins left in the Mekong River, all within a 180-km (110-mi) stretch in Cambodia, where they face the same range of threats that wiped out the transboundary group.
- Authorities and conservationists say they are now resolved to strengthen protections and improve public awareness of the dolphins’ vulnerability to ensure the species has a future in the Mekong.

GM fish engineered to glow in the dark are found in Brazil creeks
- A recent study shows that genetically modified zebrafish, known as GloFish, have been found and are breeding in creeks in Brazil’s Atlantic Forest.
- GloFish, which are genetically engineered for fluorescence, are advertised for sale online in Brazil, even though they’ve been banned there since 2017.
- Brazilian biologists have called for measures to prevent these fish from escaping fish farms and entering into local bodies of water, where they compete with native species for food.
- But a U.S biologist whose own research showed that GloFish fail to compete reproductively against wild-type zebrafish says this new paper is “almost a study about nothing” and was published only because it was “sensational.”

Protecting water by conserving forests puts communities in Mexico to the test
- Almost 15 years ago, the inhabitants of eight towns in southern Mexico’s Costa Chica decided to conserve an area that provides them with water by setting aside five square kilometers of their land to create an ecological reserve.
- Previously, sewage from the largest municipality in the area was discharged into the rivers that communities used for washing, bathing and drinking.
- Conflicts initially broke out between communities over sharing water and contributions to the protection of the reserve, though the project has sensitized people to conservation and increased the amount of water in the spring.
- However, according to forestry experts, Mexico’s protected natural areas have exceeded the institution’s capacity and available resources, meaning the communities that manage the conservation of the reserve receive little institutional support.

Dams on Brazil’s Jamanxim River: The advancing assault on the environment and Indigenous peoples in the Tapajós basin (commentary)
- Brazil’s electrical authorities have given the go-ahead for studies to prepare for building three large Amazonian dams that would flood Indigenous lands and protected areas for biodiversity.
- The decision shows that Brazil’s presidential administration is confident that the National Congress will approve the bill submitted by President Bolsonaro to open Indigenous lands to hydroelectric dams, and probably also allow dams to continue to be built without consulting impacted Indigenous peoples.
- The decision also shows that Brazil’s electrical authorities continue to ignore inconvenient information on climate change, the financial viability of Amazonian dams and their many social and environmental impacts, as well as the country’s better energy options.
- This text is translated and expanded from the author’s column on the Amazônia Real website. The views expressed are those of the author, not necessarily of Mongabay.

Chinese investment in Latin America plagues people and nature: Report
- A report from the Collective on Chinese Financing and Investments, Human Rights and the Environment (CICDHA) lays out the impact that Chinese-funded infrastructure, energy and mining projects have had in Latin America.
- The report looked at 26 projects in Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Mexico, Peru and Venezuela.
- It found almost all of them contributed to deforestation and water pollution, as well as human rights violations against local and Indigenous communities.
- CICDHA’s report lays out numerous recommendations for improving the behavior of companies carrying out projects in Latin America, but expresses doubt about China’s willingness to make a good-faith attempt at improvements.

Millennia of Indigenous history faces erasure as mining grips Brazil’s Tapajós
- Archaeological studies in the Tapajós region of Brazil’s Pará state have unearthed rich historical knowledge about the human occupation of the Amazon, recording some of the most ancient relics found in the Americas.
- But the region has become the target of industrialized illegal mining, which is leaving massive destruction in its wake and threatening to erase tens of thousands of years of historical discoveries.
- Hydroelectric plants, ports, waterways, railways and dams are also planned in the region, which would also directly impact Indigenous and local communities.
- At the same time, the Brazilian government under President Jair Bolsonaro has slashed funding for research and issued executive orders allowing caves to be demolished and prospecting to be made easier.

Cambodian project aims to revive flagging fish populations in Tonle Sap Lake
- Struggling freshwater fish populations in the Mekong River catchment received a boost earlier this month when a team of scientists and fisheries specialists released 1,500 captive-reared juvenile fish into Tonle Sap Lake in Cambodia.
- Experts say the release is the first step in rejuvenating the Mekong’s depleted fish populations and fisheries, which have been suffering in recent years due to overfishing, drought, habitat destruction, and the impacts of upstream dams on the Mekong River’s natural flow.
- The fish, including critically endangered Mekong giant catfish and giant barb, and endangered striped river catfish, were released into a series of fish sanctuaries and community conservation areas that protect crucial fish nursery habitat in Tonle Sap Lake, the world’s most productive inland fishery.
- Long-term survival of the Mekong’s threatened fish species will also depend on protection of migration corridors and upstream spawning grounds, and on maintenance of free-flowing and connected watercourses, say experts.

Pharmaceutical water pollution detected deep in the Brazilian Amazon
- Major rivers in the Amazon Basin of Brazil are contaminated with a wide range of pharmaceuticals as well as with sewage and wastewater, largely coming from urban centers in the region, according to recent research.
- Water samples taken along the Amazon, Negro, Tapajós and Tocantins rivers, and small urban tributaries that pass through the region’s cities, including Manaus, Santarém, Belém and Macapá contained 40 pharmaceuticals out of 43 in concentrations that have the potential to affect 50-80% of the local aquatic species.
- Experts explain that a major cause of freshwater contamination is the Amazon Basin’s rapidly growing population along with the government’s failure to provide adequate sanitation infrastructure — even though that has long been promised. Most of the region’s sewage is untreated, a solvable problem if properly funded.

Indigenous communities in Ecuador struggle with the aftermath of another oil spill
- In January, Ecuador’s Heavy Crude Oil Pipeline ruptured, contaminating more than 20,000 square meters of the Cayambe Coca National Park.
- Sources say contaminated water reached dozens of Indigenous Kichwa communities in the provinces of Napo and Sucumbíos.
- Three pipelines ruptured in the same area in April 2020, spilling more than 15,000 barrels of oil into the Coca River and affecting more than 27,000 members of downstream Indigenous communities.
- This story is a collaboration between Mongabay Latam and Ecuador’s La Barra Espaciadora.

Colombian palm oil company under investigation for polluting rivers
- Oro Rojo began extracting palm oil in 2013 and was granted three environmental permits by environmental authority Corporación Autónoma de Santander (CAS), two of which are currently under investigation.
- Complaints have been filed alleging Oro Rojo discharged waste into nearby waterways.
- According CAS, the company has also been fined for violations relating to air pollution.

In a biodiversity haven, mining drives highest ever recorded levels of mercury
- A recent study has found that forests in the southwestern Peruvian Amazon collect mercury from the atmosphere that’s used in artisanal small-scale gold mining in the Madre de Dios region.
- The study’s authors found “the highest ever recorded” levels of mercury from the “throughfall” that ends up on the forest floor when the leaves fall or rain washes the mercury from their surfaces.
- Mercury is highly toxic, causing neurological and reproductive problems in humans and other animals.
- Organizations are looking at different ways to reduce or even eliminate the use of mercury, which miners use to bind the flecks of gold found in the region’s riverine silt.

Caffeine: Emerging contaminant of global rivers and coastal waters
- Caffeine is the most consumed psychostimulant in the world, and a regular part of many daily lives, whether contained in coffee, chocolate, energy drinks, or pharmaceuticals.
- Partially excreted in urine, it is now ubiquitous in rivers and coastal waters. So much so that its detection is used to trace wastewater and sewage pollution. A new study found it to be in more than 50% of 1,052 sampling sites on 258 rivers around the globe. Another new study enumerates caffeine harm in coastal and marine environments.
- This continual flow of caffeine into aquatic ecosystems is causing concern among scientists due to its already identified impacts on a wide range of aquatic life including microalgae, corals, bivalves, sponges, marine worms, and ﬁsh. Most environmental impacts — especially wider effects within ecosystems — have not been studied.
- Soaring global use of products containing caffeine means the problem will worsen with time. Untreated sewage is a major source. And while some sewage treatment facilities can remove caffeine, many currently can’t. Far more study is needed to determine the full scope and biological impacts of the problem.

One fish, two fish: New goby species described from the Philippines
- Scientists recently described two new-to-science species of freshwater fish from the Philippine island of Palawan: Rhinogobius estrellae and Rhinogobius tandikan.
- The tiny, blue-spotted fish are endemic to Palawan and each is confined to freshwater pools and streams in a single location.
- The fish were collected during surveys to document freshwater fish diversity on the island; both species belong to a genus previously only known from temperate and subtropical parts of Asia, with the new discovery extending its range south into the tropics.
- Due to their restricted range, the fish are deemed highly threatened and their habitats in need of safeguards against mining, road construction and invasive species.

In Canada, Indigenous communities and scientists collaborate on marine research
- The Apoqnmatulti’k project combines Indigenous knowledge, Western science and local knowledge holders to gather information about three important marine species in two ecosystems in Nova Scotia, Canada.
- The project comes at a time of increased urgency over management of marine species, as many fish stocks are on the decline, while access to lucrative fisheries has sparked conflict.
- Project partners say the project’s collaborative approach will provide information that could help direct stewardship and conservation of species that are important to many communities.
- As important as that new data is, project participants say the greatest insight of the project may be that forging the trusting relationships required for collaborative research takes time, which doesn’t always correspond to standard academic deadlines.

Tiny plastic particles accumulating in river headwaters: Study
- Researchers modeled the journey of microplastics released in wastewater treatment plant effluent into rivers of different sizes and flow speeds, focusing on the smallest microplastic fragments — less than 100 microns across, or the width of a single human hair.
- The study found that in slow-flowing stream headwaters — often located in remote, biodiverse regions — microplastics accumulated quicker and stayed longer than in faster flowing stretches of river.
- Microplastic accumulation in sediments could be the ‘missing plastic’ not found in comparisons of stream pollution levels with those found in oceans. Trapped particles may be released during storms and flood events, causing a lag between environmental contamination and release to the sea.
- A few hours in stream sediments can start to change plastics chemically, and microbes can grow on their surfaces. Most toxicity studies of microplastics use virgin plastics, so these environmentally transformed plastics pose an unknown risk to biodiversity and health.

Paraguay’s drought hits biodiversity, Indigenous communities the hardest
- Record-breaking heat waves in Paraguay have led to water shortages and forest fires that threaten local biodiversity and many of the Indigenous communities who steward it.
- Indigenous groups like the Aché and Ava Guaraní have lost their crops and likely face food insecurity should the drought continue throughout 2022.
- Turtles, aquatic mammals and fish that usually occupy now-dried-up wetlands have been forced into the major rivers, where they face a greater threat from overfishing.

Alaskan Indigenous leaders fear impacts on salmon streams by mining project
- Mining company Donlin Gold is seeking to develop one of the world’s largest open-pit gold mines near Alaska’s Kuskokwim River, a spawning ground for several species of salmon, which make up 50 percent of local communities’ diet and subsistence lifestyle.
- According to Donlin Gold, Native corporations have already approved of the mine and the best available technology will be utilized to meet or exceed all air and water quality standards while providing employment opportunities.
- Tribal leaders argue Native corporations agreed without consulting tribal governments, who are shareholders, and fear mercury contamination and the disruption of their access to hunting and fishing grounds, as underlined in the project’s Environmental Impact Statement.
- Tribal councils have brought the matter to the Alaska Superior court and are appealing two certifications necessary for construction due to exceeded levels of mercury and impacts to salmon streams.

Innovative sewage solutions: Tackling the global human waste problem
- The scale of the world’s human waste problem is vast, impacting human health, coastal and terrestrial ecosystems, and even climate change. Solving the problem requires working with communities to develop solutions that suit them, providing access to adequate sanitation and adapting aging sewage systems to a rapidly changing world.
- Decentralized and nature-based solutions are considered key to cleaning up urban wastewater issues and reducing pressure on, or providing affordable and effective alternatives to, centralized sewage systems.
- Seeing sewage and wastewater — which both contain valuable nutrients and freshwater — as a resource rather than as pollutants, is vital to achieving a sustainable “circular economy.” Technology alone can only get us so far, say experts. If society is to fully embrace the suite of solutions required, a sweeping mindset change will be needed.

In Kathmandu, a struggle for water amid worsening floods
- In Kathmandu, residents face the dual challenges of freshwater aquifers running dry, and increasingly unpredictable monsoons causing flash floods.
- The combination of climate change and a rapidly growing urban population is straining an already overwhelmed municipal water system, forcing many residents to have to buy water by the tank at high prices.
- An ambitious project to pipe water to the city from a nearby river was shut down within months of its long-delayed start — a victim of the monsoon floods that destroyed a dam and water treatment plant.
- Another solution being explored is rainwater harvesting, which proponents say should be complemented by restoration of Kathmandu’s green areas and restrictions on drawing groundwater.

The thick of it: Delving into the neglected global impacts of human waste
- Though little talked about, our species has a monumental problem disposing of its human waste. A recent modeling study finds that wastewater adds around 6.2 million tons of nitrogen to coastal waters worldwide per year, contributing significantly to harmful algal blooms, eutrophication and ocean dead zones.
- The study mapped 135,000 watersheds planetwide and found that just 25 of them account for almost half the nitrogen pollution contributed by human waste. Those 25 were pinpointed in both the developing world and developed world, and include the vast Mississippi River watershed in the United States.
- Human waste — including pharmaceuticals and even microplastics contained in feces and urine — is a major public health hazard, causing disease outbreaks, and putting biodiversity at risk. Sewage is impacting estuary fish nurseries, coral reefs, and seagrasses, a habitat that stores CO2, acting as a buffer against climate change.
- Waste is often perceived as mostly a developing world problem, but the developed world is as responsible — largely due to antiquated municipal sewage systems that combine rainwater and wastewater in the same pipes. As a result, intense precipitation events regularly flush raw sewage into waterways in the U.S., U.K. and EU.

Indonesia’s clean energy transition must start with clean rivers (commentary)
- Indonesian President Joko Widodo has touted hydropower as key to the country’s transition away from coal, which currently dominates the national energy mix.
- But while Indonesia has a wealth of major rivers with the potential to high power-generating capacity, more than half are degraded and polluted.
- With Indonesia set to showcase its clean energy transition when it hosts the G20 summit later this year, this is the time to start cleaning up the country’s rivers, writes Warief Djajanto Basorie.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

As its glaciers melt, Nepal is forced into an adaptation not of its choosing
- Climate change is causing the glaciers in Nepal’s Himalayan region to melt at an alarming rate, threatening fragile ecosystems, vulnerable communities, and billions of people downstream who rely on the rivers fed by the ice pack.
- If global greenhouse gas emissions continue on a business-as-usual trajectory and average global temperatures rise by more than 4°C (7.2°F) by 2100, the Himalayan region could lose up to two-thirds of its glaciers, a study shows.
- For farming communities, this means water shortages, less feed for their livestock, and increased risks of natural disasters such as landslides and glacial lake flash floods.
- The Himalayas are, at present, heating up at rates up to 0.7°C (1.3°F) higher than the global average, and poor communities are already feeling the impacts.

Podcast: In search of wild spectacles and river journeys
- Looking for a gift for the environmentalist in your life? Or just looking for a great book for yourself? We’ve got a couple recommendations for you on today’s episode of the Mongabay Newscast.
- We welcome to the show Janisse Ray, author of Wild Spectacle: Seeking Wonders in a World beyond Humans. The book details Ray’s search for “heart-pounding flashes of wild spectacle.” Ray shares some stories of the places she traveled to for the book and explains why she did all that traveling without getting in an airplane.
- We also welcome Jordan Salama, whose first book is called Every Day the River Changes: Four Weeks Down the Magdalena. Salama tells us about the four weeks he spent traveling down the Magdalena River in Colombia, why Colombians speak of the Magdalena River with “an almost religious fervor,” and what he hopes people can take away from his book.

The past, present and future of the Congo peatlands: 10 takeaways from our series

This is the wrap-up article for our four-part series “The Congo Basin peatlands.” Read Part One, Part Two, Part Three and Part Four. In the first half of December, Mongabay published a four-part series on the peatlands of the Congo Basin. Only in 2017 did a team of Congolese and British scientists discover that a […]
First Nations unite to fight industrial exploitation of Australia’s Martuwarra
- The Fitzroy River in the Kimberley region of Western Australia, one of the country’s most ecologically and culturally significant waterways, is facing proposals of further agriculture and mining development, including irrigation and fracking.
- In response, First Nations communities in the region have developed different methods to promote the conservation of the river, including curating cultural festivals, funding awareness campaigns, and working with digital technologies.
- First Nations land rights are held along the length of the Fitzroy River, the first time this has occurred across an entire catchment area in Australia.
- The catchment is the last stronghold of the world’s most “evolutionarily distinct and globally endangered” species, the freshwater sawfish (Pristis pristis) and is home to the threatened northern river shark (Glyphis garricki).

Carbon and communities: The future of the Congo Basin peatlands
- Scientific mapping in 2017 revealed that the peatlands of the Cuvette Centrale in the Congo Basin are the largest and most intact in the world’s tropics.
- That initial work, first published in the journal Nature, was just the first step, scientists say, as work continues to understand how the peatlands formed, what threats they face from the climate and industrial uses like agriculture and logging, and how the communities of the region appear to be coexisting sustainably.
- Researchers say investing in studying and protecting the peatlands will benefit the global community as well as people living in the region because the Cuvette Centrale holds a vast repository of carbon.
- Congolese researchers and leaders say they are eager to safeguard the peatlands for the benefit of everyone, but they also say they need support from abroad to do so.

In Laos, a ‘very dangerous dam’ threatens an ancient world heritage site
- The government of Laos plans to build a 1,460-megawatt hydroelectric dam upstream of the ancient city of Luang Prabang, a UNESCO World Heritage Site.
- The dam is part of the government’s aim to bring in revenue by selling electricity to its neighbors; the country already has 78 dams in operation, including the Xayaburi mega dam 130 kilometers downstream from Luang Prabang.
- Public dissent is muted within the one-party state, but experts and downstream countries are raising the alarm about the dam’s potential impacts on the heritage site and the broader Mekong ecosystem.

Holding agriculture and logging at bay in the Congo peatlands
- The peatlands of the Congo Basin are perhaps the most intact in the tropics, but threats from logging, agriculture and extractive industries could cause their rapid degradation, scientists say.
- In 2021, the government of the Democratic Republic of Congo (DRC) announced that it was planning to end a moratorium on the issuance of logging concessions that had been in place for nearly two decades.
- The move raised concerns among conservation groups, who say the moratorium should remain in place to protect the DRC’s portion of the world’s second-largest rainforest.
- Today, timber concession boundaries overlap with the peatlands, and though some companies say they won’t cut trees growing on peat, environmental advocates say that any further issuance of logging concessions in the DRC would be irresponsible.

Restoring coastal forests can protect coral reefs against sediment runoff: Study
- Corals have declined by 50% over the last 30 years, with losses of 70-90% expected by mid-century.
- This mass decline is largely attributed to human activity.
- One of the major threats to coral is sediment runoff from deforested areas, with research estimating 41% of the world’s coral reefs are affected by sediment export.
- A recent study published in Global Change Biology finds that restoring forests could help reduce sediment runoff to 630,000 square kilometers (243,244 square miles) of coral reefs.

Layers of carbon: The Congo Basin peatlands and oil
- The peatlands of the Congo Basin may be sitting on top of a pool of oil, though exploration has yet to confirm just how big it may be.
- Conservationists and scientists argue that the carbon contained in this England-size area of peat, the largest in the tropics, makes keeping them intact more valuable, not to mention the habitat and resources they provide for the region’s wildlife and people.
- Researchers calculate that the peatlands contain 30 billion metric tons of carbon, or about the amount humans produce in three years.
- As the governments of the Republic of Congo and the Democratic Republic of Congo work to develop their economies, they, along with many policymakers worldwide, argue that the global community has a responsibility to help fund the protection of the peatlands to keep that climate-warming carbon locked away.

Niger Delta communities in ‘great danger’ as month-old oil spill continues
- Oil has been spilling from a wellhead in Nigeria’s Bayelsa state for a month now, with the local company responsible unable to contain it.
- Experts say the scale and duration of the spill is so severe that it’s imperative that local communities be relocated for their safety.
- Oil spills and other forms of pollution caused by the industry are common in Bayelsa, the heart of the oil-rich Niger Delta.
- Companies, including foreign oil majors, are largely left to self-declare the spills that frequently occur, but face only token fines for failing to respond quickly.

The ‘idea’: Uncovering the peatlands of the Congo Basin
- In 2017, a team of scientists from the U.K. and the Republic of Congo announced the discovery of a massive peatland the size of England in the Congo Basin.
- Sometimes called the Cuvette Centrale, this peatland covers 145,529 square kilometers (56,189 square miles) in the northern Republic of Congo and the Democratic Republic of Congo, and holds about 20 times as much carbon as the U.S. releases from burning fossil fuels in a year.
- Today, the Congo Basin peatlands are relatively intact while supporting nearby human communities and a variety of wildlife species, but threats in the form of agriculture, oil and gas exploration and logging loom on the horizon.
- That has led scientists, conservationists and governments to look for ways to protect and better understand the peatlands for the benefit of the people and animals they support and the future of the global climate.

Young forests can help heal tropical aquatic ecosystems: Study
- Microbial communities are important indicators of ecological degradation in the tropics, often reflecting levels of disturbance and contamination in rivers and streams.
- In an attempt to monitor the ecological condition of various streams in central Panama, researchers at the Smithsonian Tropical Research Institute (STRI) assessed the impact of various land usages, such as cattle pasture and secondary forest, on microbial diversity and community structure.
- In less than a decade, researchers say, reforested land allows bacterial communities to recover, highlighting the importance of reforestation for overall ecosystem recovery.

Stretch of Borneo’s Mahakam River eyed for protection to save Irrawaddy dolphins
- Conservationists in Indonesian Borneo are working to establish a protected area along the Mahakam River to save the remaining population of the nearly extinct Irrawaddy dolphin.
- The proposed conservation area is expected to alleviate the threats to the population of the freshwater dolphins, including river degradation and ship traffic.
- The latest population estimates suggest only around 80 of the endangered dolphins remain in the Mahakam.

From flood to drought, Brazil’s Acre state swings between weather extremes
- Extreme weather conditions, from massive flooding to severe water shortages, have rocked cities and small communities alike in the heart of the Brazilian Amazon this year, a trend experts attribute to climate change and human actions.
- The Acre River, which crosses the state of same name in the western Brazilian Amazon, is experiencing its second-worst drought in recorded history, with water levels close to record lows.
- The water shortage comes just months after the same region experienced widespread flooding as the Acre River overflowed its banks and forced hundreds of thousands of people to flee their homes.
- Brazil as a whole is facing its worst dry spell in nearly a century, which is affecting water supplies for people, agriculture and electricity generation, and is part of a global pattern of increased water stress.

Pingers on fishing nets found to save river dolphins in Indonesian Borneo
- A trial has demonstrated that underwater acoustic pingers can keep river dolphins at a safe distance from fishing nets, preventing fatal entanglements.
- Fishers in the Mahakam River in Indonesian Borneo collaborated with researchers to test the devices that emit a high-frequency sound that acts as a deterrent to the local population of freshwater Irrawaddy dolphins.
- Aside from protecting the dolphins, the devices were also found to increase fishers’ catches and reduce costly repairs to nets; experts describe this as a “win-win” solution.
- International river dolphin initiatives are now testing the devices in locations such as the Amazon, the Ganges and the Indus rivers to find out if they can be implemented at a much larger scale to safeguard dwindling river dolphin species worldwide.

Inland mangroves reveal a tumultuous climatic past — and hint at our future
- A new study concludes that the presence of inland mangroves along a river in southern Mexico was the result of climate change-driven sea level rise during the Pleistocene Epoch, some 115,000 to 130,000 years ago.
- The researchers’ analysis of the genetic history of the mangrove trees suggests that they are closely related to trees found on the coastline, and sediments nearby are similar to those found in ocean environments.
- Publishing their work Oct. 12 in Proceedings of the National Academy of Sciences, the team notes that their research highlights the impacts of global climate change.

In a sea of oil palms, even monitor lizards need islands of natural forest
- Forest patches in and around oil palm plantations are crucial for the survival of Asian water monitor lizards, a generalist species that usually thrives in human-impacted landscapes.
- A new study focused on the Kinabatangan floodplain in Malaysian Borneo found significantly more lizards in natural forest near oil palm plantations than in the plantations themselves.
- The researchers suggest lizards are particularly dependent on forest patches for breeding sites and shelter.
- The study adds to a growing body of evidence that demonstrates the vital role of natural forest in and around oil palm plantations and reaffirms the importance of buffer zones and habitat corridors that enable animals to negotiate oil palm-dominated landscapes.

Oil pipeline on Native lands ramps up as Canada honors its Indigenous people
- Construction of the Line 3 pipeline by Canadian oil giant Enbridge is in its final stages of completion, and is set to carry tar sands crude from Alberta to Wisconsin via lands that Indigenous Anishinaabe people use for hunting and harvesting.
- There are concerns the pipeline will contribute to further spills in the distinctive wetlands and wild rice fields of the region, as the company has a long track record of “hazardous liquid incidents,” including the largest inland oil spill in U.S. history, and failing to follow environmental laws during construction.
- Some Indigenous rights and tribal leaders view Canada’s approval and the subsequent construction of Line 3 as part of the continuing legacy of colonialism and cultural erasure, which the National Day for Truth and Reconciliation, on September 30, seeks to address.

New transport infrastructure is opening the Amazon to global commerce
- Tim Killeen provides an update on the state of the Amazon in his new book “A Perfect Storm in the Amazon Wilderness – Success and Failure in the Fight to save an Ecosystem of Critical Importance to the Planet.”
- The book provides an overview of the topics most relevant to the conservation of the Amazon’s biodiversity, ecosystem services and Indigenous cultures, as well as a description of the conventional and sustainable development models vying for space within the regional economy.
- Mongabay will publish excerpts from the Killeen’s book, which will be released by The White Horse Press in serial format over the course of the next year. In this second installment, we provide a section from Chapter Two: “Global Competition Drives Bulk Transport Systems”.
- This post is an except from a book. The views expressed are those of the author, not necessarily Mongabay.

Snapshot of hatchlings raises hopes for Siamese crocs in northeast Cambodia
- Researchers have found and photographed eight Siamese crocodile (Crocodylus siamensis) hatchlings in northeastern Cambodia — the first confirmed evidence that the critically endangered species is breeding in this area.
- The new breeding population significantly expands the known breeding range of the species in Cambodia; until now, most breeding was recorded around the Cardamom Mountains landscape in the southwest.
- With fewer than 1,000 adults remaining in the wild globally, the species is on the brink of extinction; threats include habitat loss, hydropower schemes, poaching, and entanglement in fishing gear.
- Wildlife experts say conservation measures, including community engagement, captive breeding and reintroduction programs, will help to ensure Siamese crocodiles’ long-term survival.

The secret lives of common hippos | Candid Animal Cam
- Every two weeks, Mongabay brings you a new episode of Candid Animal Cam, our show featuring animals caught on camera traps around the world and hosted by Romi Castagnino, our writer and conservation scientist.

Not just sea life: Migratory fish, birds and mammals also fall foul of plastic
- A new report from the U.N. Environment Programme and the Convention on the Conservation of Migratory Species of Wild Animals confirms that plastic pollution poses a major threat to land and freshwater migratory species.
- Mammals, birds and fish are affected through various means, including entanglement, ingestion of plastics, accumulation of microplastics in the food chain, and using plastics in nesting material.
- The report highlights that global capacity to manage plastic pollution is not keeping pace with projected growth in the plastics market.
- The authors call for measures that will ultimately drive change upstream to reduce the volume of plastics entering the marketplace.

Vale told Brazil communities they were in danger. They say Vale wants their land
- Residents moved from their homes in Brazil’s Minas Gerais state over fears of impending collapses of dams operated by miner Vale are accusing the company of trying to take over their land.
- The first such evacuation was ordered in February 2019 in the municipality of Barão de Cocais, two weeks after the Brumadinho dam disaster killed 458 people.
- In the two and a half years since then, more communities have been moved, with affected residents saying Vale is stonewalling them on compensation.
- A document drawn up by state prosecutors in March confirms that there’s been interest in prospecting for minerals on the vacated land, although Vale has not responded to the accusation.

New map identifies risks, and potential sanctuaries, for Brazil’s diving duck
- The Brazilian merganser, a duck that’s the mascot for the country’s waterways, is among the top 10 most threatened birds in the world, with only about 250 individuals left in the wild.
- As part of conservation efforts, scientists have recently published a map showing the critically endangered species’ distribution in its remaining habitat, as well as identifying suitable new areas where it could thrive.
- The map also highlights the threats to this bioindicator species that needs clear, pollutant-free water to survive; the main threat comes from the damming of rivers, which affects water flow and quality for the mergansers.
- The researchers found 36 small hydropower plants planned for areas close to sites where the species lives, potentially impacting 504 square kilometers (196 square miles), or 4.1% of the total area suitable for the duck’s habitat.

Dam builder denies responsibility as logjam chokes river in Malaysian Borneo
- Tons of wood debris has clogged up the Baleh and Rajang rivers in Sarawak, Malaysian Borneo.
- The logjam originated in the headwaters of the Baleh, where a hydroelectric dam is currently under construction and logging activity is being carried out nearby.
- The logjam originated in the headwaters of the Baleh, where a hydroelectric dam is currently under construction and logging activity is being carried out nearby.
- But the state-owned utility building dam denies responsibility, pointing to logging upstream.

Illegal mining in Colombia’s Amazon threatens Indigenous communities
- In June 2021, Indigenous communities observed boats carrying out illegal gold mining in the Caquetá River in the Colombian Amazon.
- Satellite images showed as many as 19 boats that month on the Puré River, one of the Caquetá’s tributaries.
- Research shows mercury contamination from gold mining has contaminated Indigenous communities in the Caquetá River Basin.
- Researchers and Indigenous advocates warn the influx of miners into the remote Colombian Amazon may compromise the health and well-being of uncontacted peoples who depend on isolation for their way of life.

Loss of mangroves dims the light on firefly populations in Malaysia
- Firefly populations along the banks of the Rembau River in Malaysia have declined drastically in the past decade due to habitat loss, a new study has found.
- Researchers, who used satellite imagery to monitor changes in land use, found that conversion of Rembau’s mangroves to oil palm plantations and dryland forests were the top two factors behind the loss.
- Remote-sensing technology could help locals better understand the impact of various land use types on mangrove ecosystems and more efficiently prioritize areas for conservation.

Lessons from the 2021 Amazon flood (commentary)
- In June 2021, the annual flood season in the western and central Amazon reached record levels, and dramatic scenes of inundated homes, crops and city streets captured attention beyond Amazonia. This event provides lessons that must be learned.
- The high flood waters are explained by climatological forces that are expected to strengthen with projected global warming. Damaging floods represent just one of the predicted impacts in Amazônia under a warming climate.
- The administration of Brazilian President Jair Bolsonaro must change its current denialist positions on global warming and its policies that encourage deforestation. The Amazon forest must be maintained for many reasons in addition to its role in avoiding climate change.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Study puts 2050 deadline on tipping point for Mekong Delta salinity
- The increasing salinity in Mekong Delta is currently being driven by the building of dams upstream and sand mining downstream, but climate change will likely be the predominant factor by 2050, a new study shows.
- The Mekong Delta is a key farming region, and already more frequent and extensive saltwater intrusion is killing off large swaths of crops with greater frequency.
- The study’s authors say regional stakeholders need to address the anthropogenic drivers of saltwater intrusion in the delta now, before climate change makes it a global problem.
- The study also has implications for other delta systems across Asia, which face similar pressures, both anthropogenic and climate change-driven.

Planned Brazil-Peru highway threatens one of Earth’s most biodiverse places
- Serra do Divisor National Park on Brazil’s border with Peru is home to numerous endemic animals and more than a thousand plant species, but faces a double threat from a planned highway and a bid to downgrade its protected status.
- The downgrade from national park to “environmental protection area” would paradoxically open up this Andean-Amazon transition region to deforestation, cattle ranching, and mining — activities that are currently prohibited in the park.
- The highway project, meant to give Acre another land route to the Pacific via Peru, has been embraced by the government of President Jair Bolsonaro, which has already taken the first steps toward its construction.
- Indigenous and river community leaders say they have not been consulted about the highway, as required by law, and have not been told about the proposed downgrade of the park, both of which they warn will have negative socioenvironmental impacts.

Our World Heritage is deeply tied to rivers and they need protection from dams (commentary)
- This month’s World Heritage meeting represents a critical opportunity for the UNESCO World Heritage Committee (WHC) to protect rivers and the World Heritage sites and cultures that depend on them.
- The WHC is charged with protecting sites around the world deemed of the highest cultural and natural values. The increasing impact of dams on World Heritage sites has prompted global outcry, most recently in the Selous Game Reserve in Tanzania and Luang Prabang in Laos.
- Beyond the WHC’s role in protecting existing sites from harm, governments, financiers and the hydropower industry must adopt clear ‘No-Go’ zones in, near or with impact on our World Heritage sites.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Mining exposes Indigenous women in Latin America to high mercury levels
- A study carried out by the International Pollutant Elimination Network (IPEN) and the Biodiversity Research Institute (BRI) analyzed the levels of mercury in the bodies of 163 Indigenous women of childbearing age.
- The study authors found considerably high levels of mercury in women from two Indigenous groups in Bolivia who base their diet mainly on fish they obtain from rivers near gold mines.
- According to the researchers, mercury in the mother’s body can put their health and that of their fetuses at risk.
- Communities evaluated in Brazil and Venezuela also had mercury in their bodies; in Colombia, Indigenous groups without nearby gold mining and with non-fish-based diets had the lowest levels of mercury.

Amazon dams: No clean water, fish dying, then the pandemic came
- Villagers living near the Teles Pires and São Manoel dams in Brazil’s Mato Grosso state — including the Apiaká, Kayabí and Munduruku peoples — attest to poor water quality, lack of potable water, increased malaria and rashes since the dams were built on their river. They also say there has been little response from the dam companies.
- Indigenous peoples say the Brazilian hydroelectric projects have altered river ecology along with thousands of years of cultural practice, especially their fishing livelihood. Migratory fish and other game fish have been greatly diminished, so residents must now resort to fishing at night.
- Once the COVID-19 pandemic arrived in the region, lack of clean water for bathing became even more urgent, while disappearing fish in daily diets made it harder to get food or isolate in riverside villages. Only under judicial order did dam companies recently improve water supply infrastructure.
- Experts trace these adverse impacts back to the dams’ planning stages: with the construction companies skipping legally mandated steps, not consulting Indigenous peoples as required, and failing to calculate cumulative impacts of multiple dam projects. Villagers are now monitoring impacts — and some are studying the law.

Brazil’s Belo Monte Dam: Struggle for the Volta Grande enters a new phase (Commentary)
- A June 17th judicial decision suspends the permission granted on February 8th by Brazil’s environmental agency to allow even more water to be diverted from the Xingu River.
- Even without the additional diversion of water, the 130-km “Volta Grande” stretch receives insufficient water for its unique ecosystems and for its indigenous and traditional river-dwelling inhabitants.
- The new decision is at high risk of being overturned by means of Brazil’s “security suspension” laws that allow any ruling that would “damage” the economy to be reversed.
- The new decision could also be neutralized by the Bolsonaro government after technical studies are completed in December. It could also be overridden by a new interministerial group that is about to be decreed. The views expressed are those of the author, not necessarily Mongabay.

Meet the 2021 Goldman Environmental Prize Winners
- This year marks the 32nd anniversary of the prestigious Goldman Environmental Prize, which honors one grassroots activist from each of the six inhabited continents.
- The 2021 prize winners are Sharon Lavigne from the United States, Gloria Majiga-Kamoto from Malawi, Thai Van Nguyen from Vietnam, Maida Bilal from Bosnia and Herzegovina, Kimiko Hirata from Japan, and Liz Chicaje Churay from Peru.

After two collapses, a third Vale dam at ‘imminent risk of rupture’
- Vale, the Brazilian mining company responsible for two deadly dam collapses since 2015, has another dam that’s at “imminent risk of rupture,” a government audit warns.
- The Xingu dam at Vale’s Alegria mine in Mariana municipality, Minas Gerais state, has been retired since 1998, but excess water in the mining waste that it’s holding back threatens to liquefy the embankment and spark a potentially disastrous collapse.
- Liquefaction also caused the collapse of a Vale tailings dam in 2019 in Brumadinho municipality, also in Minas Gerais, that killed nearly 300 people; the 2015 collapse of another Vale dam, in Mariana in 2015, caused extensive pollution and is considered Brazil’s worst environmental disaster to date.
- Vale has denied the risk of a collapse at the Xingu dam and says it continues to monitor the structure ahead of its decommissioning; regulators, however, say the company still hasn’t carried out requested measures to improve the structure’s safety, and have ordered an evacuation of the immediate vicinity.

How many members can a giant river otter family have? Candid Animal Cam
- Every two weeks, Mongabay brings you a new episode of Candid Animal Cam, our show featuring animals caught on camera traps around the world and hosted by Romi Castagnino, our writer and conservation scientist.

Declining fish biodiversity in Peruvian Amazon affecting human nutrition
- Declining fish diversity in the Peruvian Amazon could affect nutrition for many of the region’s 800,000 people, according to a new study.
- In Loreto region, fishers have been catching fewer large migratory fish species, which are being replaced by smaller fish. Although protein levels are roughly the same, smaller fish contain more omega-3 fatty acids but less iron and zinc, overall—an issue in a region where people already have high rates of anemia and malnutrition.
- Inland communities are already transitioning toward eating more farmed fish and chicken, but these foods may not be an adequate replacement for the range of nutrients these communities get from a diverse diet of wild fish.
- Although this study focused on regional fish, other wild foods such as plants, insects and bushmeat are an important source of nutrition across the globe. Therefore, policies and practices that preserve biodiversity are not only important for conservation but also a means towards greater food security and public health.

Humanity’s challenge of the century: Conserving Earth’s freshwater systems
- Many dryland cities like Los Angeles, Cairo and Tehran have already outstripped natural water recharge, but are expected to continue growing, resulting in a deepening arid urban water crisis.
- According to NASA’s GRACE mission, 19 key freshwater basins, including several in the U.S., are being unsustainably depleted, with some near collapse; much of the water is used indiscriminately by industrial agribusiness.
- Many desert cities, including Tripoli, Phoenix and Los Angeles, are sustained by water brought from other basins by hydro megaprojects that are aging and susceptible to collapse, while the desalination plants that water Persian Gulf cities come at a high economic cost with serious salt pollution.
- Experts say that thinking about the problem as one of supply disguises the real issue, given that what’s really missing to heading off a global freshwater crisis is the organization, capital, governance and political will to address the problems that come with regulating use of a renewable, but finite, resource.

‘Opening the lid’ on toilet innovation: Q&A with author Chelsea Wald
- A new book, “Pipe Dreams: The Urgent Global Quest to Transform the Toilet,” published on April 6, looks at the environmental and public health case for developing better solutions to deal with human waste.
- Science writer Chelsea Wald examines the impacts of human sanitation on our climate, ecosystems and each other around the world, from rural communities to cities swelling with human populations.
- In this “quest,” Wald finds solvable problems, if society as a whole can come together to find solutions tailored to specific contexts.

Rivers can be climate change solutions, too (commentary)
- The usual avenues for addressing and adapting to climate change–like protecting forests and ramping up clean energy sources–typically overlook one powerful solution: rivers.
- Rivers and their floodplains have the potential to act as shock absorbers to climate change, and are powerful agents for keeping wildlife and communities healthy and resilient.
- The most effective climate action plans will account for this and incorporate rivers into their plans for a climate-resilient future, argues Michele Thieme, a freshwater scientist at World Wildlife Fund.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Threats loom large over Amazon’s Arrau turtles, despite record number of hatchlings
- The Amazonian Chelonian Program counted 120,000 Arrau turtle hatchlings (Podocnemis expansa) in Cantão State Park in Brazil’s Tocantins state last year, a 300% increase from just four years earlier.
- But researchers also noticed changes in nesting behavior, including the choice of a new nesting beach, and eggs buried deeper in the sand.
- They suspect nearby fires forced the turtles to find a new nesting site, and warn of a potential gender imbalance in the population if the turtles continue to bury their eggs deeper.
- Other threats to the species include plans to widen the Araguaia and Tocantins rivers for freight ships, and the main problem that has plagued the species for centuries: hunting for human consumption.

Amazon’s Belo Monte dam cuts Xingu River flow 85%; a crime, Indigenous say
- In February, IBAMA, Brazil’s environmental agency permitted Belo Monte mega-dam operator Norte Energia to drastically reduce flows to the Volta Grande (Big Bend) of the Xingu River for at least a year. That decision reversed an earlier ruling to maintain much higher Xingu River flows and the fishery — as legally required.
- The flow reduction will leave 70% of usually-flooded forest dry this season, causing massive fish mortality and diminished reproduction, experts say. Community group Xingu Vivo Para Sempre denounced the decision as “a death sentence for the Xingu” and demanded IBAMA’s and Norte Energia’s presidents be “criminally prosecuted.”
- Norte Energia has funded projects to mitigate the reduced flow, collecting and dropping fruit into the river for fish to feed on, and releasing captive-bred fish. But scientists say these approaches are unscientific and will likely be ineffective, and can’t make up for the loss of the river’s seasonal flood pulse, upon which fish depend.
- Residents say the government has spread misinformation, telling Brazilian consumers that their electricity bills would go up if Belo Monte released more water to maintain the Xingu’s ecosystem — something Norte Energia is obligated to do. At present, water levels on the Volta Grande have not been restored.

As Amazon forest-to-savanna tipping point looms, solutions remain elusive
- Leading scientists project that if an additional 3-8% of rainforest cover is lost in the Amazon, it may overshoot a forest-to-degraded-savanna tipping point. That shift could mean mega-drought, forest death, and release of great amounts of stored carbon to the atmosphere from southern, eastern and central Amazonia.
- Despite this warning, Brazilian Amazon deforestation hit an 11-year high in 2020. Government clampdowns on environmental crime greatly decreased deforestation in the past, but Brazil is now facing a political backlash led by President Jair Bolsonaro, resulting in agribusiness and mining expansion and deforestation.
- Market efforts to create incentives have been ineffective. A public-private plan to cut deforestation led by Mato Grosso state has not met its environmental targets, even as agricultural lands increased. Amazonas, Acre and Rondônia — Bolsonaro-aligned states — are pushing for the creation of a new agriculture frontier.
- Indigenous communities, because they’re the best land stewards, should be at the forefront of public policy to conserve the Amazon, say experts, but instead they face poverty and marginalization by the institutions responsible for securing their land rights. International response to the Amazon crisis has also lagged.

Calls for accountability after coal-slurry spill in Indonesian river
- A coal-slurry spill into a river in Indonesian Borneo has killed hundreds of fish and forced authorities to shut off water lines to households.
- The slurry came from a waste facility run by coal miner PT Kayan Putra Utama Coal, which has apologized for the Feb. 7 incident and promised to distribute clean water to affected residents.
- Industry watchdogs and residents say such incidents are common on the Malinau River in North Kalimantan province, where coal mining is a major industry.
- The provincial legislature has called for an investigation and criminal charges if necessary against the company.

Podcast: Are biomass and hydropower ‘false’ climate solutions?
- On this episode of the Mongabay Newscast, we look at two energy-related technologies that are being promoted as climate solutions, biomass and hydropower, which might have unintended consequences that hamper their ability to supply clean energy and thus might not be sustainable solutions at all.
- Our first guest is Justin Catanoso, a professor at Wake Forest University and long-time Mongabay correspondent. Catanoso tells us about the loopholes in renewable energy policies that have allowed the biomass industry to flourish under the guise of “carbon neutrality,” even though the burning of biomass for energy releases more carbon emissions than burning coal.
- We also speak with Ana Colovic Lesoska, a biologist by training who founded the Eko-Svest Center For Environmental Research in North Macedonia. Colovic Lesoska was instrumental in shutting down two large hydropower projects in her country’s Mavrovo National Park, but there are still more than 3,000 new hydropower projects proposed in the Balkans. She tells us why hydropower is being adopted by Balkan countries and whether or not hydropower can be a climate solution at any scale.

Brazil’s Belo Monte Dam: Greenwashing contested (commentary)
- The company responsible for Brazil’s Belo Monte Dam claimed in a letter to the New York Times that the company respects Indigenous peoples, the environment and international conventions.
- The Arara Indigenous people contest the company’s claims and call attention to a series of broken promises.
- The Belo Monte Dam is notorious for having violated international conventions and Brazilian laws regarding consultation of Indigenous peoples, and for its massive environmental and social impacts.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Invasion of the crayfish clones: Q&A with Ranja Andriantsoa
- An unusual invasive crayfish has been spreading in Madagascar, threatening aquatic biodiversity even as it helps nourish the country’s food-insecure population.
- The marbled crayfish (Procambarus virginalis) evolved only in recent decades as part of the German aquarium trade. It’s entirely female and reproduces clonally without males.
- Ranja Andriantsoa, a Malagasy biologist and epigenetics researcher, began studying marbled crayfish as a way to learn about cancerous tumors, which reproduce in a similar way.
- Andriantsoa’s ongoing research focuses on the social and health impacts of the marbled crayfish and aims to inform Madagascar’s strategy for managing the crayfish’s ecological impact.

Plantations, mines didn’t worsen flood, Indonesia says. The data begs to differ
- Indonesia’s environment minister claims deforestation for oil palm plantations and coal mines had nothing to do with a recent deadly flood in southern Borneo.
- But the ministry’s own data, and statements by a senior minister, attribute the intensity of the flooding on the massive loss of forest cover across the Barito River’s watershed.
- Environmental activists say the deforestation has compromised the natural function of the watershed to absorb the heavy rains that caused the Barito and its tributaries to overflow following heavy rains.
- The coordinating minister for human development has called for a more sustainable management of natural resources in the region, warning against unbridled exploitation.

Palm oil plantations, coal mines linked to deadly Indonesia flood
- Environmentalists have attributed recent heavy floods in southern Indonesian Borneo to widespread deforestation for oil palm plantations and coal mines.
- An analysis by Indonesia’s space agency shows an area of forest twice the size of London was cleared in the past decade in the watershed area of the Barito River in South Kalimantan province.
- During the same period, plantations spanning twice the size of Los Angeles have been established in the watershed area.
- Activists have called for a sweeping review of licenses as well as rehabilitation of degraded areas in the region.

Award-winning Thai community continues the fight to save its wetland forest
- In 2018, community members in Ban Boon Rueang, in Thailand’s northern Chiang Rai province, successfully campaigned against plans to convert a wetland forest into a special economic zone.
- The wetland, which supports residents’ livelihoods as well as providing a haven for wildlife, remains under the customary management of villagers.
- However, it faces ongoing threats due to climate change and dam construction on the Mekong River. Local officials also cannot guarantee that future administrations won’t revive plans to convert the area for industrial use.

Ribeirinhos win right to waterside Amazon homeland lost to Belo Monte dam
- Some 40,000 people — mostly peasant farmers, fisherfolk, traditional families (living from the collection of forest products), Indigenous people, and ribeirinhos — were evicted to make way for the Belo Monte dam, constructed between June 2011 and November 2019.
- The ribeirinhos (traditional riverine people) were not politically well organized at the time, and along with many others, were forced out of their traditional riverside homes and livelihoods. Most moved into urban housing developments away from the Xingu River, where they were forced to pay rent and acclimate themselves to urban life.
- But over the years the ribeirinhos gained political savvy. Negotiating with Norte Energia, the consortium that built and runs Belo Monte, they gained the right to establish a collectively owned Ribeirinho Territory beside the Belo Monte reservoir.
- Under the agreement, 315 families are each to be provided with 14 hectares (34 acres) for individual use. Added to that are areas for collective use and a forest reserve — a combined total of 20,341 hectares (50,263 acres). However, with the deal now seemingly sealed, Norte Energia has backpedaled, wanting to propose a different agreement.

Historical analysis: The Amazon’s mineral wealth — curse or blessing?
- Mining of gold and other precious metals in the Amazon fueled the Spanish and Portuguese colonial empires, while bringing misery and death to unknown hundreds of thousands of Indigenous people and African slaves, forced to work the mines.
- Modern industrial mining came to the Brazilian Amazon in the late 1940s as transnational firms began digging up and processing manganese, iron, bauxite, zinc, and other ores. Like the earlier iterations of mining, transnational firms, investors, and nations profited hugely, while local people saw little benefit.
- Brazil offered massive subsidies and tax incentives to attract transnational mining companies, and built giant public works projects, including mega-dams, transmission lines, and roads to provide energy and other services to the mines. Though the government offered little to disrupted traditional communities.
- All this came with extraordinary socio-environmental costs, as Brazilian Amazon deforestation soared, land and waterways were polluted, and Indigenous and riverine peoples were deprived of their traditional ways of life and lands, and suffered major public health repercussions. This mining trend continues today.

Belo Monte dam’s water demands imperil Amazon communities, environment
- Norte Energia, the builder and operator of the controversial Belo Monte mega-dam is pushing for implementation of a much disputed “consensus hydrogram” — a plan to annually manipulate water releases into the Xingu River’s Volta Grande (Big Bend), with estimated peak April releases ranging from a mere 4,000 – 8,000 m3/s.
- Noting that April average historical river flows in the Volta Grande before the dam was built were 19,985 m3/s, analysts say this dearth of water flow will prevent and imperil annual fish reproduction. One Volta Grande expert estimates that, using the so-called consensus hydrogram plan, at least 80% of Volta Grande fish will die.
- Documents from IBAMA, Brazil’s environmental agency, which first came to light publicly on December 3, acknowledge “grave and irreparable impacts” from the Belo Monte dam, and signal an urgent need to revise Norte Energia’s planned consensus hydrogram.
- Two recent studies say fish are decreasing dramatically in diets within Belo Monte’s influence area, causing food insecurity. Norte Energia claims fish quantities sold locally remain the same, but their data may mask significantly increased fishing effort, and the need to fish more widely, beyond previous fishing areas.

Dolphins face growing pressure as development eats into Borneo’s interior
- The ecosystems of East Kalimantan province in Indonesian Borneo face increasing pressure due to mining, logging, industrial agriculture, infrastructure projects, and a plan to establish a new administrative capital city.
- One of the species imperiled by this rapid transformation is the Irrawaddy dolphin.
- Estuarine populations of the species already face severely negative impacts from increasing shipping traffic and coastal development in Balikpapan Bay.
- A critically endangered population of freshwater Irrawaddy dolphins living in the middle reaches of the Mahakam River are also under increasing pressure due to climate change, oil palm cultivation, coal mining and transport.

Bottlenose dolphins could disappear from Ecuador’s Gulf of Guayaquil
- The abundance of bottlenose dolphins in Ecuador’s Gulf of Guayaquil has decreased by around 50% in the last decade.
- Several rivers in Ecuador, as well as neighboring Peru, empty into the gulf, and it is one of the most productive fishing areas in the country.
- But entanglements in fishing gear, along with tourism and water pollution, are contributing to the dolphins’ decline and could lead to their disappearance altogether in the coming decades, researchers report in a new study.

The Amazon’s Yanomami utterly abandoned by Brazilian authorities: Report
- A new report highlights the escalating existential crisis among the 30,000 Indigenous people living in the Yanomami Territory, covering 9,664,975 hectares (37,317 square miles) in northern Brazil. Data shows that the Yanomami reserve is in the top ten areas now most prone to illegal deforestation in the Brazilian Amazon.
- The report accuses Jair Bolsonaro’s Brazilian government of abandoning the Yanomami to the invasion of their territory by tens-of-thousands of illegal miners. While the administration has launched sporadic operations to stop these incursions, the miners return as soon as police leave the reserve.
- Bolsonaro is also accused of having done little to combat COVID-19 or provide basic healthcare. As a result, pandemic case numbers have grown by 250% in the last three months, now possibly infecting 10,000 Yanomami and Ye’kwana, about a third of the reserve’s entire population, with deaths recorded among adults and children.
- “Children, young people and the generations to come deserve to live healthy lives in their forest home. Their futures should not be cut off by the actions of a genocidal administration,” says the report compiled by the Yanomami and Ye’kwana and a network of academics. Brazil’s Health Ministry denied the charge of negligence.

Multiplying Amazon river ports open new Brazil-to-China commodities routes
- Nearly 100 major industrial river ports have been built on the Brazilian Amazon’s major rivers over the past two decades. Many of the projects have been internationally financed and built by commodities companies with little government oversight.
- These ports have transformed the region, opening it to agribusiness and the export of commodities, especially soy, to China and the rest of the world. However, this boom in port infrastructure often came at the expense of the environment and traditional riverine communities.
- Today, more than 40 additional major river ports are planned in the Amazon biome on the Tapajós, Tocantins, Madeira and other rivers, projects again being pursued largely without taking cumulative socioenvironmental impacts into account.
- “What resources do these soy men bring to our city?” asked Manoel Munduruku, an Indigenous leader. “They only bring destruction.”

Deadly anniversary: Rio Doce, Brazil’s worst environmental disaster, 5 years on
- On November 5, 2015, the Fundão iron mine tailings dam failed, pouring 50 million tons of mud and toxic waste into Brazil’s Rio Doce, killing 19 people, polluting the river, contaminating croplands, devastating fish and wildlife, and polluting drinking water with toxic sludge along 650 kilometers (400 miles) of the waterway.
- Five years on, the industry cleanup has failed to restore the river and watershed, according to residents, with fisheries and fields still poisoned and less productive. Access to clean water also remains difficult, while unexplained health problems have arisen, though some cleanup and livelihood projects are yielding hope.
- Rio Doce valley inhabitants remain frustrated by what they see as a slow response to the environmental disaster by the dam’s owner, Samarco, a joint venture of Vale and BHP Billiton, two of the world’s biggest mining companies, and also by the Brazilian government. Roughly 1.6 million people were originally impacted by the disaster.
- The count of those still affected is unknown, with alleged heavy metal-related health risks cited: Maria de Jesus Arcanjo Peixoto tells of her young grandson, sickened by a mysterious illness: ”We’re left in doubt… But he was three months old when the dam burst. And all the food, the milk, the feed for the cows — it all came from the mud.”

Brazil’s Bem Querer dam: An impending Amazon disaster (commentary)
- Brazil’s President Jair Bolsonaro has announced his administration’s priorities for Amazon dams, including the planned Bem Querer dam on the Rio Branco in the far-northern state of Roraima.
- Bem Querer is primarily intended to increase the energy supply to industries in locations outside of Amazonia, rather than for residents of Roraima.
- Probable environmental impacts include blocking fish migrations and flooding a riparian forest that possesses extraordinary bird diversity. Downstream flow alteration would impact protected areas, including two Ramsar wetland biodiversity sites. Riverside dwellers would also be impacted.
- Sediment flow blockage would impact fisheries and the unique Anavilhanas Archipelago, a spectacular Brazilian national park. These adverse impacts need to be fully evaluated before a decision to build is made. This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Peruvian Indigenous groups thwart oil drilling in their territory — for now
- An immense oil concession known as Lot 64 overlaps with much of the Indigenous Achuar Nation’s 8,020-square-kilometer (3,100-square-mile) homeland, as well as a portion of the neighboring territory of the Wampis people.
- The Achuar and the Wampis say they do not consent to drilling for oil on Lot 64, and thus, any exploitation of the lot would be illegitimate under Peruvian law.
- They argue that drilling for oil and transporting it to the coast would almost certainly contaminate rivers vital to their existence in this corner of the Amazon.
- In July, the private company that had a 75% stake in the concession withdrew from its contract, but the Indigenous communities see this as a temporary victory, as the government-backed oil company, Petroperu, has indicated it will seek a new partner to tap into Lot 64’s reserves.

Court allows referendum on mining in the Ecuadoran Andes to go forward
- Leaders in the Andean city of Cuenca are trying to get a referendum, also known as a popular consultation, to prohibit mining around the city on the ballot in the upcoming national elections scheduled for February 2021.
- The five-question consultation seeks to prohibit mining to protect the ecosystem around the Tomebamba, Yanuncay, Machángara, Tarqui and Norcay rivers.
- Experts say that mining could destroy these critical sources of water.

Brazil’s Amazon dam plans: Ominous warnings of future destruction (commentary)
- Brazil’s current 10-year Energy Expansion Plan calls for three more large dams in Amazonia by 2029, and Brazil’s 2050 National Energy Plan lists many more.
- Both plans contain ominous passages explaining that the list of dams could expand if “uncertainty” is resolved regarding current regulations protecting Indigenous peoples and protected areas for biodiversity.
- Brazil’s National Congress is considering bills to eliminate environmental licensing; a bill submitted by President Jair Bolsonaro would allow dams on Indigenous lands. Brazil’s dam-building plans to satisfy 2050 energy demand extend to neighboring Amazonian nations, including Peru and Bolivia.
- The 2050 plan essentially admits that dams on Indigenous lands and within other protected areas are not necessary because the electricity could be generated by offshore wind power. This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Madagascar shuts down ‘illegal’ gold mine but activists remain in legal limbo
- Earlier this month, Madagascar’s government suspended a controversial gold-mining operation in Vohilava commune in the country’s southeast.
- The project, a dredging operation in the Isaka River that allegedly uses mercury to separate gold from ore, has caused notable damage to the river, local economy, and public health, prompting near-unanimous local opposition.
- A demonstration in September against the mine prompted a visit by officials that led to the mine’s suspension.
- However, prosecutors are investigating six people for involvement in the demonstration, including one who was previously jailed as a result of his opposition to the mining project.

Oil palm plantations in Sumatran watershed worsen flooding in communities
- The development of oil palm and rubber plantations in a watershed area of Indonesia’s Sumatra Island is exacerbating flooding for nearby communities, new research suggests.
- The multidisciplinary study finds that soil compaction on land cleared for planting reduces the ground’s capacity to absorb rainwater, leading to surface runoff that leads to flooding.
- The researchers also interviewed people living nearby, who blamed the drainage channels and dams built for the plantations for channeling runoff to their areas.
- The researchers call for soil protection and improved land-use planning to reduce the incidence and severity of flooding.

Why the health of the Amazon River matters to us all: An interview with Michael Goulding
- Like the rainforest which takes its name, the Amazon is the largest and most biodiverse river on the planet. The river and its tributaries are a critical thoroughfare for an area the size of the continental United States and function as a key source of food and livelihoods for millions of people. Yet despite its vastness and importance, the mighty Amazon is looking increasingly vulnerable due to human activities.
- Few people understand more about the Amazon’s ecology and the wider role it plays across the South American continent than Michael Goulding, an aquatic ecologist at the Wildlife Conservation Society (WCS) who has worked in the region since the 1970s studying issues ranging from the impact of hydroelectric dams to the epic migration of goliath catfishes. Goulding has written and co-authored some of the most definitive books and papers on the river, its resident species, and its ecological function.
- In recognition of his lifetime of advancing conservation efforts in the Amazon, the Field Museum today honored Goulding with the Parker/Gentry Award. The Award — named after ornithologist Theodore A. Parker III and botanist Alwyn Gentry who were killed in a plane crash during an aerial survey of an Ecuadorian cloud forest in 1993 — is given each year to “an outstanding individual, team or organization in the field of conservation biology whose efforts have had a significant impact on preserving the world’s natural heritage and whose actions and approach can serve as a model to others.”
- In a September 2020 interview ahead of the prize ceremony, Goulding spoke with Mongabay about his research and the current state of the Amazon.

Mercury from gold mining contaminates Amazon communities’ staple fish
- The four species of fish most commonly consumed by Indigenous and riverine people in the Brazilian state of Amapá contain the highest concentrations of mercury.
- In some species, researchers found levels of mercury four times in excess of World Health Organization recommendations.
- The mercury comes from gold-mining activity, where it’s used to separate gold from ore before being burned off and washed into the rivers.
- The health impacts of mercury contamination are well-documented, and include damage to the central nervous system, potentially resulting in learning disabilities for children and tremors and difficulty walking for adults.

In Brazil, human action and climate change are drowning a community
- In the old seaside resort of Atafona on the coast of Rio de Janeiro, the Atlantic Ocean has been destroying streets, houses and businesses for more than 50 years, claiming at least 500 buildings.
- The damming of the Paraíba do Sul River and destruction of forests along its banks are seen as factors in the river’s silting and throttled water flow, which has allowed the sea to advance up the mouth of the river where Atafona is located.
- According to researchers, climate change is speeding up the rate of coastal erosion through increased frequency and intensity of extreme surges and storms; in Atafona, the sea advances 3 meters (10 feet) a year.
- According to the International Organization for Migration, environmental impacts displaced 295,000 people were in Brazil in 2019; worldwide, the figure exceeds that of displacements caused by internal conflicts.

Ecuador races for emergency infrastructure as river’s collapse threatens dam
- The erosion has progressed at an accelerated rate and has reached other rivers, threatening a national highway and Indigenous communities.
- Studies commissioned by the Ecuadoran government call for emergency infrastructure to mitigate the erosion, which could reach the catchment dam of the Coca Codo Sinclair hydroelectric plant, with disastrous consequences.
- The Kichwa Indigenous communities affected by the oil spill four months ago say they are still waiting for justice from the government and the pipeline operators.

Fires in Argentina’s Paraná Delta are burning ‘out of control’
- Hundreds of fires are currently burning through the Paraná Delta region, an important wetland ecosystem that hosts a range of wildlife in Argentina, raising concerns among conservationists.
- The Paraná River is also experiencing extremely low water levels due to a regional drought, although experts say an exact climatic reason for the drought has yet to be determined.
- Experts say most of the fires have been deliberately lit by people, but they are now raging “out of control” due to drought, lack of rainfall and low river levels.

Deforestation in the Amazon is drying up the rest of Brazil: Report
- The center-west, south and part of the southeast regions of Brazil have seen rainfall well below average in recent years.
- Agriculture is the first sector to feel the effects of the drought, with drastic losses in production. Water supply and power generation have also been impacted.
- Agribusiness suffers the consequences of drought but also causes it: Deforestation of the Amazon to clear land for livestock, farming and logging affects the rainfall regime in Brazil and other Latin American countries.
- “South America is drying up as a result of the combined effects of deforestation and climate change”, says scientist Antonio Donato Nobre.

More than 500 dams planned inside protected areas: Study
- More than 500 dams are either under construction or planned within protected areas over the next two decades, according to a new study.
- The study found that more than 1,200 large dams already exist within protected areas.
- The authors strongly encourage governments to avoid constructing dams in or near protected areas and instead to look toward renewable energies such as wind and solar.
- The researchers express concerns about ongoing rollbacks to environmental protections, especially amid the COVID-19 pandemic.

Vietnam approves $9 billion development within mangrove reserve
- Vietnam’s $9.3 billion Can Gio Tourist City was recently approved for construction within the buffer zone of a UNESCO Mangrove Biosphere Reserve in Ho Chi Minh City.
- Developed by Vingroup, Vietnam’s largest private company, the project will require the reclamation of a huge amount of land along Can Gio’s coast.
- Environmentalists and activists have petitioned the government to reconsider the project, but Vingroup is a key part of the country’s drive toward industrialization and home-grown world-class companies.

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