topic: Rivers

topic: Rivers

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Cherokee youth win legal rights for waterway in first all-female U.S. effort
- On Jan. 8, 2026, the Eastern Band of Cherokee Indians Tribal Council unanimously passed a resolution recognizing the inherent legal rights of the Longperson (Ganvhidv Asgaya), an interconnected waterway system whose headwaters rise in the Great Smoky Mountains and end in the sea.
- The resolution was brought forward by the NAIWA Daughters, a group of Indigenous girls aged 10 to 17, making it the first all-female-led rights-of-nature effort in the U.S., and only the second such youth-led resolution passed by a Tribal nation.
- The effort followed 18 months of grassroots organizing and built on the foundations of the rights-of-nature movement, which holds that ecosystems and natural entities should have legal standing to exist and flourish.
- The Longperson resolution grants the waterway five inherent rights and has already spurred related action, including a separate tribal resolution to raise funds for removing the Ela Dam.

Trading food for medicine and crossing the river by zip line are part of life in Nepal flood zone
KATHMANDU, Nepal (AP) — Some survivors sheltering in relief camps after deadly floods in Nepal struggled Thursday to obtain essential medicines and cash, even as authorities provided food and other basic supplies to thousands of displaced people. The shortages are adding to the hardships of those living in temporary shelters after having lost homes and belongings. Suresh […]
Nepal’s flood disaster puts its hydropower-first strategy, exports to the test
- ● The Aug. 26 flash floods on the Nepal-China border wiped out or badly damaged 281 megawatts of installed capacity and damaged 388 MW under construction in Nepal, with losses estimated to be hundreds of billions of Nepali rupees. With transmission lines on the Trishuli riverbank washed away, another 150 MW of power is cut off from the national grid.
- Surface-built powerhouses, dams and desanders near the riverbed suffered the worst damage, while underground powerhouses held up well, pointing to project locations, longer access tunnels, and early-warning systems as key resilience factors, though these upgrades could raise project costs by 10-12%.
- Some experts argue the flood should prompt Nepal to prioritize domestic consumption over its export-driven hydropower strategy, citing both physical disaster risk and falling electricity prices in neighboring India.
- The disaster threatens Nepal’s newly achieved net-exporter status (18.75 billion rupees, or $142 million in Financial Year 2025) heading into winter’s low-flow season, and is accelerating calls to scale up solar power.

Fatal barge crashes fuel fear over Madeira River waterway expansion in Brazil
- Brazil is planning to dredge the Madeira River to boost grain exports despite recent fatal barge collisions and poor dialogue with local communities.
- In addition to accidents, expanded traffic and dredging pose risks of erosion, water pollution, harm to aquatic species and fishing.
- As national elections approach, communities worry that politicians will prioritize agribusiness over the safety of those who rely on the river to access doctors, schools, work, trade and daily routines.

Land rights and mangroves entwine in a Brazilian quilombo’s resistance
- Officially recognized as a collection of quilombos, or traditional Afro Brazilian communities, by the government in 2023, Brejão dos Negros is still awaiting the land titles it has been demanding for 20 years.
- The federal land reform agency has demarcated more than 8,000 hectares (19,800 acres) of the territory, but the communities have been authorized to use less than a tenth of this area.
- This delay has left them vulnerable to land disputes; the encroachment of shrimp farms into mangrove areas, which harms fishing and shellfish gathering; and increased salinization of the São Francisco River, which affects their crops and hinders their access to potable water.
- Seeking new income sources, the community members are turning to pesticide-free farming; one of the communities has become the largest producer of agroecological rice in Sergipe state.

Myanmar junta pushes to restart Myitsone Dam project
Since June, Myanmar’s military government has increased its efforts to restart a massive, controversial hydropower project backed by China that has remained suspended for 15 years. The Myitsone Dam project, launched in 2009 and estimated to cost $3.6 billion then, was to be built along the Mali River, the N’mai River, and their confluence at […]
Cambodia’s banned sand trade with Singapore appears to be back
- Cambodia appears to have resumed exporting sand to Singapore, despite a 2017 national ban, with Koh Kong provincial authorities saying a new dredging operation has been licensed.
- Mongabay traced at least four bulk carriers from Koh Kong to Singapore’s Tuas Port, where the site of a massive land reclamation project.
- The dredging is taking place within protected area boundaries and could affect riverbanks, fisheries and wildlife, as well as a major downstream mangrove forest.
- Environmental activists say they hope to draw attention to the renewed sand trade, but Cambodia’s shrinking civic space and restrictions on civil society groups have made standing up to environmental violations increasingly difficult.

In Amazon rivers, fish breathe and ingest plastics
- Following proof of the presence of microplastics in Amazonian rivers, streams and lakes, researchers are investigating how these particles affect fish health and physiology.
- A study highlights the risks associated with microplastics in the air-breathing organs of the pirarucu, a giant fish that must rise to the surface to breathe.
- Studies conducted with Amazonian fish show microplastics in their gills and digestive tracts, and experiments with the tamoatá point to increased stress and weight loss.
- Scientists warn of risks to human health in a region where fish is a dietary staple; in Brazil’s Amazonas state, average annual consumption is 14 kilos per person, five times the national average.

First Nations lead the return of salmon to Canada’s Upper Columbia River
- First Nations in British Columbia, western Canada, are working to restore salmon to the Upper Columbia Basin and leading ceremonial salmon fry releases to reestablish connections between salmon and salmon people.
- The Columbia River was once one of the greatest salmon-bearing rivers in North America, but the construction of the Grand Coulee Dam, built without fish passage mechanisms, blocked salmon from a significant portion of the river’s length.
- The loss of salmon has profoundly affected Indigenous nations and tribes, with a loss of food sovereignty and cultural connections.
- The Bringing the Salmon Home initiative, led by the Secwépemc, Syilx-Okanagan and Ktunaxa nations, in partnership with the governments of British Columbia and Canada, is advancing salmon reintroduction to the Upper Columbia Basin, with technical studies showing reintroduction is feasible.

Women’s collectives are protecting Nigeria’s gorilla wildlife sanctuary
In the communities surrounding Nigeria’s Afi Mountain Wildlife Sanctuary, women’s conservation collectives are transforming the protection of a biodiversity hotspot that’s home to the critically endangered Cross River gorilla and endangered Nigeria-Cameroon chimpanzee. These collectives, operating in villages such as Ulom, Katabang and Buanchor in southeastern Nigeria, were born from a realization that traditional, male-led […]
Beavers restored a volcano-scarred river. Now it’s at risk again
More than 40 years after sediment from a volcanic eruption filled up a stretch of the North Fork Toutle River in the U.S. state of Washington, beavers are turning the smothered waterway into a thriving wetland. However, a planned infrastructure project now threatens to undo five years of restoration progress, reports contributor Isabel Gil for […]
Activists allege Cambodia has resumed sea sand exports to Singapore
- An environmental group in Cambodia alleges that sea sand exports to Singapore have quietly resumed despite a 2017 government ban, citing new footage of dredging operations and cargo vessels bound for the city-state.
- The allegations by Mother Nature Cambodia revive long-standing concerns over sand mining in Koh Kong province, where dredging has been linked to environmental damage and declining fisheries, and where a previous export scandal prompted the 2017 ban.
- Cambodia’s minister of mines defended sand mining as important for navigation and construction, while acknowledging environmental concerns, but did not address claims that exports to Singapore have resumed.
- The dispute comes as Mother Nature Cambodia continues to face pressure from the government, with several of its members imprisoned on charges widely viewed as retaliation for exposing environmental abuses.

From rivers to mangroves, microplastics are contaminating the Amazon
- Recent studies show that microplastics are already present in a variety of Amazonian environments: Major rivers such as the Amazon, urban streams, floodplain areas and mangroves in the Amazon’s Mouth.
- In a single lake in eastern Manaus, researchers found microplastics in the intestines of half the jaraquis — the most consumed fish in Amazonas state
- The contamination is related to irregular waste disposal and lack of sewage collection and treatment, which allow household residues to flow directly into water bodies.
- This is the first story in a three-part special series on microplastics in the Amazon region; upcoming pieces will look into the effects of these particles on aquatic and terrestrial organisms.

Rivers are not just water bodies: Interview with the Waterman of Odisha
- Ranjan Panda — social ecologist, journalist and researcher — is popularly known as the Waterman of Odisha.
- Panda highlights the invisible and noneconomic losses that communities living in coastal areas deal with due to climate change.
- In this interview, he highlights how rivers should be seen beyond their two boundaries of flow; how there is a stark difference in the ways rural and urban India see rivers.

Brazil lists the Amazon river turtle as endangered for the first time
- The cágado-iaçá, or six-tubercled Amazon River turtle, had its risk elevated from near threatened to endangered, entering Brazil’s official list of fauna species threatened with extinction for the first time.
- Despite protection and conservation efforts, cágado-iaçá’s populations over the past 36 years declined by more than 50% in Amazonas and western Pará states, according to official data.
- The species is widely consumed in the northern region, alongside the yellow-spotted river turtle and the Amazon turtle, which remain in a less concerning category, according to ICMBio.
- The hyacinth macaw, the black howler monkey and the red silky anteater were reclassified as vulnerable, adding to the list of 790 species recently published.

Beavers brought a volcanic wasteland back to life. Now it’s under threat
- Mark Smith and his family run a campsite that backs up to the North Fork Toutle River in the U.S. state of Washington, which was swamped with sediment and runoff from the 1980 eruption of Mount St. Helens.
- The fine-grained volcanic sediment smothered the waterway, making it difficult for native wildlife and vegetation to become reestablished even decades after the eruption.
- But over the past five years, the Smith family, together with natural resource experts from the Cascade Tribe, the Cascade Forest Conservancy, the Columbia Fish Recovery Group, and the Cowlitz Indian Tribe, have reintroduced beavers to the property.
- By building dams and canals, the beavers have established deeper pools and wetlands along the North Fork Toutle River, allowing native trees and fish to repopulate the area.

Can conservation change how the world sees the Strait of Hormuz? (commentary)
- If seen only as an oil corridor, the main question becomes how to keep energy moving, but this overlooks a much more important reality, that the Strait of Hormuz is biologically rich yet fragile.
- Featuring mangroves, seabird colonies, coral reefs, turtle nesting beaches and islands, it is a narrow ecological corridor through which the Persian Gulf exchanges water between the Gulf of Oman and Indian Ocean, connecting nature across borders.
- “If it is also seen as an ecological corridor, another question enters the room: how much ecological capital is the region willing to risk while trying to protect its political and economic capital?” a new op-ed asks.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

The women leading a quiet conservation revolution in a Nigerian gorilla sanctuary
- Women’s conservation collectives in the communities surrounding Nigeria’s Afi Mountain Wildlife Sanctuary are working to defend the wildlife, forests and rivers in a protected area that’s home to threatened gorillas and chimpanzees.
- Funded by membership dues, these groups carry out patrols, investigate wildlife crimes, and work collaboratively with traditional leadership structures to censure violators.
- One of the groups’ notable successes comes in ensuring that rules aimed at protecting the environment are upheld without bias or favoritism.
- The successes of the pioneering women’s collectives have inspired the formation of similar initiatives in other villages surrounding the sanctuary.

Targeted conservation in Brazil could help protect the Amazon’s flying rivers
- The Amazon’s atmospheric moisture flows known as “flying rivers” provide over 70% of rainfall in parts of southern Peru and northern Bolivia, but they are threatened by deforestation in the Brazilian Amazon.
- According to a new report by the NGO Amazon Conservation, the lack of protections for areas known as undesignated public forests and road development projects pose a deforestation risk that would disrupt the flying rivers during dry and transition seasons.
- Research shows that the Amazon is already experiencing longer dry seasons, which in turn affects the forest’s capacity to recycle moisture for the flying rivers.
- Conservation targeting the forests that are most important for recycling atmospheric moisture could help maintain the flying rivers, the report proposes.

Museum DNA unmasks new Himalayan pit vipers, study says
For more than 160 years, the Himalayan pit viper was believed to be a single species, found across the Himalayas in Pakistan, India and Nepal. Now, a new study revealed this snake is actually not one, but five distinct species, including three entirely new to science. For their analysis, the researchers conducted fieldwork to different […]
Himalayan rivers shifting course as climate warming thaws the ‘Water Tower of Asia’
Rivers are known to naturally meander, change courses, braid and branch. But as rising temperatures melt glaciers and thaw frozen ground, the courses of Himalayan rivers are shifting and changing shape much more rapidly than before, according to a new study published in the journal Science. The rising instability of the rivers could pose a […]
‘Flamingo Revolution’ aims to stop Kushner-backed resort on protected Albanian delta
- In April, Albanian authorities allowed bulldozers to tear through the protected Vjosa-Narta delta — home to flamingos, loggerhead sea turtles and the endangered Mediterranean monk seal — without permits or environmental review, sparking mass protests that have shaken the government of Prime Minister Edi Rama.
- The construction is linked to a luxury resort backed by Jared Kushner’s Affinity Partners, targeting one of the last intact river-delta wildernesses in the Mediterranean, where only 4% of deltas remain undisturbed.
- As Albania’s anti-corruption authority investigates and the EU warns the development could jeopardize the country’s 2030 membership bid, conservationists say the crisis exposes a pattern of broken promises around the celebrated Vjosa Wild River National Park.

In Ecuador, an Indigenous community goes thirsty despite its two rivers
- On the banks of the Puní River’s middle basin, in the Ecuadorian Amazon, illegal mining has increased by 2,700% over seven years, contaminating the main water source for the ancestral Kichwa community of Capirona.
- Residents of Capirona say that, by 2021, the color of the Puní River started to change, turning brownish. Meanwhile, problems such as skin rashes, fungal infections and itching became frequent.
- In samples of mining ore collected by Ecuadorian authorities from an illegal mining camp on the banks of Puní, signs of mercury were found at levels far exceeding the permitted limit for this metal in agricultural soils.
- Industrial farming activity has also polluted the waters of the Shalkana River, another watercourse located within the community. Despite being surrounded by two rivers, residents of Capirona rely on two water tankers sent weekly by municipal authorities, which is enough for barely half of the families for just a few days.

A blueprint for effective activism 10 years after defeating a dam in Borneo (analysis)
- Threatening to inundate hundreds of square kilometers of forest and displace thousands of people on the island of Borneo, the Baram Dam spurred a principled response from a coalition whose members endured threats and harassment while undertaking brave actions like maintaining a 26-month road blockade.
- Ten years since Indigenous and local communities united with civil society organizations across the world to send that proposal down to a historic defeat, two leaders of one NGO that was key to the victory reflect on what helped the campaign succeed.
- “While the Baram victory cannot be automatically replicated — since each river, each community, each political configuration is its own — the structure of the campaign’s Indigenous-led physical resistance, rigorous independent science, and international solidarity infrastructure that amplifies without supplanting local leadership has been reactivated in varying forms and sites of victory across the world,” they write.
- This article is an analysis. The views expressed are those of the authors, not necessarily of Mongabay.

Sri Lanka’s recent drowning deaths linked to aftermath of extreme weather events
- Sri Lanka recorded more than 50 drowning deaths in the first five months this year.
- Faster currents on the outer banks of rivers can pull swimmers off balance, especially during the monsoon season when river discharge increases, researchers say.
- Experts observe multiple factors including flash rains, more silt and eroding riverbanks that impact the river flow.
- A 2020 study recorded how curvatures of critical meandering bends in Deduru Oya have increased between 1989 and 2021.

Northern Thai residents march for action on polluted rivers. ‘This is an emergency’
- A six-day ‘peace walk’ to demand Thai officials take action regarding river pollution that has seen Thai rivers polluted with heavy metals concluded on World Environment Day.
- Health authorities in Thailand have found arsenic in two people living near the Kok River. Heavy metals have also been found in the water and fish of Kok and other rivers.
- A spokesperson for the Thai Prime Minister’s Office said the government established a working group to monitor the contamination problem in the Kok River and has been continuously coordinating with other countries.
- China, which imports rare earth oxides and compounds from Myanmar, also addressed the pollution of rivers in an online statement: “The Chinese government has always placed utmost importance on protecting the environment and ecosystem.”

Europe removes record number of dams in 2025 to restore rivers, help species
A massive slab of wartime concrete blocked the Pčinja River in Kumanovo, North Macedonia for more than 70 years. A 53-meter-long and 30-meter-wide (174 by 98 feet) structure of reinforced concrete packed with salvaged railway steel impeded the free flow of water and fish for at least 70 kilometers (44 miles) upstream. It was considered […]
Global sand demand is outpacing nature’s ability to replenish it, UN says
The global sand mining industry removes around 50 billion metric tons of material each year, outpacing the rate at which sand replenishes through the slow geological processes of weathering, reports Mongabay’s Carolyn Cowan. According to a report by the U.N. Environment Programme (UNEP), the demand for sand is expected to grow by 45% by 2060 […]
Davis “Yellowash” Washines, Yakama elder who spoke for the river and salmon
- Davis “Yellowash” Washines, a Yakama elder, public servant, ceremonial leader, and former police chief, devoted much of his life to defending Yakama treaty rights, clean water, and the Columbia River, known to the Yakama people as Nch’i-Wána.
- Drawing on his background in law enforcement, he described the toxic pollution at Bradford Island near Bonneville Dam as a crime scene, with the water, salmon, and people who depended on them as victims.
- His work joined law, culture, education, and public service: he served as Yakama Tribal Police chief, Columbia River Inter-Tribal Fish Commission police chief, Yakama Nation General Council chairman, counselor, language instructor, trustee, and board chair.
- The 2022 designation of Bradford Island as a Superfund site reflected years of persistence, but he saw the deeper goal as clean, healthy fish, safe water, and the fulfillment of responsibilities to future generations and those unable to speak for themselves.

Reintroduced platypus population ‘tracking well’ in Australia’s oldest national park
Platypuses reintroduced to Australia’s oldest national park are breeding and appear to be on a good population trajectory with 20 known individuals now, scientists say. For more than 50 years, the platypus (Ornithorhynchus anatinus), a semiaquatic, egg-laying mammal, had been absent from Royal National Park, a protected area located just south of Sydney in the […]
Countries push new protections for the Amazon’s iconic migratory catfish
- Around the world, migratory freshwater fish are in peril from activities including overfishing and, more recently, dams blocking their migratory routes.
- The most threatened species include two large Amazonian catfish, and an inaugural conservation plan will be implemented by the five countries where they range.
- Connected river habitat is crucial for the gilded catfish and Laulao catfish: They undertake some of the longest known river migrations in the world, traveling up to 12,000 kilometers (7,500 miles) over their lifetimes.
- The main challenge in saving these migratory catfish and many other aquatic species is maintaining connectivity among rivers, which in the Amazon are increasingly being affected by dams and shipping.

19,000 Great Pyramids a year: Report flags unsustainable rate of sand mining
- A new analysis of global sand extraction indicates the industry is removing roughly 50 billion metric tons a year, a pace that far outstrips natural replenishment.
- Experts say the loss of sand from landscapes, river deltas, and coastal zones threatens ecosystems, livelihoods and many processes on which life depends.
- Although the sand mining industry is operating at unsustainable levels, experts say measures exist to lessen its impact.
- Solutions include coordinated governance, stronger monitoring and long-term, cross-border planning.

Tensions rise in DRC mining region as community leaders arrested over protest
Civil society groups have denounced the “arbitrary” arrests of 11 community leaders in the Democratic Republic of Congo following a peaceful protest over the impacts of mining operations on local communities. Authorities made the arrests on May 1 in the country’s southeastern Lualaba province, prompting calls by local and international NGOs for the “immediate and […]
Arabian Gulf’s fragile marine ecosystem threatened by current crisis (commentary)
- During the Iran–Iraq war of the 1980s and subsequent conflicts, large-scale oil spills and fires caused lasting environmental damage in the Arabian Gulf.
- A new commentary by United Arab Emirates special envoy of the minister of foreign affairs for nature Razan Khalifa Al Mubarak explains that recovery of impacted marine ecosystems, where it occurred, took decades, but that this progress is now threatened by the new conflict along the gulf.
- “What is at stake today is not only the repetition of past damage, but its amplification across interconnected systems,” she writes in arguing for an end to the current conflict.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Dangerous arsenic levels detected in Thailand’s Mekong mainstream for first time
- Thai authorities have detected dangerous levels of arsenic contamination in sediment from the Mekong River mainstream and three of its tributaries in the country’s north.
- The contamination has been widely linked to a surge in unregulated mining, including for rare earth minerals, upstream in Myanmar’s Shan state.
- Experts warn that toxic heavy metals could threaten aquatic ecosystems, fisheries and the livelihoods of millions of people who depend on the Mekong Basin.
- Regional coordination and monitoring remain limited, with the Mekong River Commission lacking authority over key upstream areas in Myanmar and China.

The world’s great deltas are sinking — and with them, a global food system
- The Mekong Delta is sinking. Projections indicate that 90% of this life-sustaining landform could disappear by 2100 due to human-driven factors such as groundwater pumping and sediment capture by dams, compounding the effects of sea-level rise.
- The Mekong is just one of 40 of the world’s large river deltas threatened by high subsidence rates coupled with rising sea levels, according to a 2026 global study. Among the 19 river deltas seeing the most significant widespread subsidence are those on the Mekong, Nile, Chao Phraya, Ganga-Brahmaputra, and Mississippi rivers.
- As the world’s great deltas sink, humanity loses rich, irreplaceable agricultural lands, fisheries, urban areas and exceptional biodiversity — much of which will not be salvageable beyond a certain point. Delta loss poses a significant threat to global food security, and an existential threat to often impoverished delta communities.
- Delta subsidence can be slowed and even reversed by implementing well-understood mitigation strategies, say experts, by replacing hydropower dams with alternative energy, reducing sand mining and groundwater extraction, and altering agricultural practices. But these solutions are hampered by economics and lack of political will.

Cambodia tested waters amid pollution claims; months later, still no public results
- Following local Indigenous Brao reports of health issues stemming from water since gold mining began in the area in 2023, Cambodian authorities tested water and sediment from the O’Ta Bouk River in February.
- To date, no results of water, sediment or fish sampling has been made public, despite experts urging more comprehensive testing and communities languishing in uncertainty over the safety of the river.
- All of this is taking place in Virachey National Park, one of Cambodia’s oldest and most remote protected areas, home to many endangered species, where the Cambodian government awarded an 18,900-hectare mining exploration license to a politically connected company.
- Brao fishers who live along the banks of the O’Ta Bouk River say there are no fish in the water, which they attribute to persistent problems linked to pollution; farmers who use the O’Ta Bouk’s waters for irrigation question whether to plant another year’s crops.

Migratory freshwater fish are in trouble: Will we act in time to save them?
- Migratory freshwater fish have declined by an estimated 81% since 1970 yet remain largely overlooked in global conservation policy. At the latest meeting of the Convention on Migratory Species (CMS), a new assessment identified 325 species worldwide in urgent need of coordinated protection.
- These long-distance swimmers underpin inland fisheries that feed hundreds of millions of people across the Amazon, Mekong, Congo and other river basins. By moving through river systems, they connect habitats, sustain food webs and support local economies.
- Dams, water extraction and habitat loss are rapidly severing migration routes, often cutting off access to spawning and feeding grounds. Scientists warn that without stronger protections, many migratory fish species — and the river systems they sustain — face an uncertain future.

Saline intrusion in Mekong Delta leaves farmers and scientists at odds
- Vietnam’s Mekong Delta is increasingly facing saltwater intrusion, as sea levels rise, land subsides and the river’s natural cycles are disrupted by dams and irrigation infrastructure.
- A growing scientific consensus says Vietnam must learn to adapt to salt water rather than trying to engineer its way out of the problem; this perspective was officially integrated into Vietnam’s public policy with the 2017 Resolution 120.
- In practice, however, hard infrastructure like sluice gates are popular at the local level and continue to be built.
- Progress implementing Resolution 120 has also slowed due to 2025 administrative reforms that restructured ministries and re-drew provincial boundaries in the delta.

Laos can do more to mitigate chemical pollution of rivers flowing into Vietnam (analysis)
- Rapid expansion of rare earth and gold mining in Laos is contaminating river systems that flow into Vietnam, putting millions of downstream users at risk.
- Toxic runoff, particularly arsenic, poses a “silent” threat as it bioaccumulates over time, with serious long-term impacts on human health, fisheries and food security.
- Weak enforcement and the lack of a dedicated Laos-Vietnam monitoring framework leave these shared rivers vulnerable, highlighting the urgent need for stronger cross-border cooperation and safeguards.
- This article is an analysis. The views expressed are those of the author, not necessarily of Mongabay.

Chesapeake Bay conservation bolstered by the power of business & viral videos
- Austin Lewis is small business owner in the Baltimore area who greatly enjoys his home waters, but he increasingly noticed how much trash floated or coated the bottom of his beloved Chesapeake Bay, and so decided to become part of the solution.
- His often humorous and always educational videos posted to various social media platforms garner huge attention and drive action by viewers to also do their part to improve water quality. The business allows him the flexibility to do this work daily, which in partnership with a local nonprofit, has removed millions of pounds of debris from the bay.
- In a new interview at Mongabay, Lewis shares his motivations and thoughts about the power of business to do good in the world.

Brazilian state greenlights deforestation for contested open-pit gold mine
The state of Pará in the Brazilian Amazon has authorized Canadian mining company Belo Sun to begin clearing nearly 600 hectares, or almost 1,500 acres, of rainforest for an open-pit gold mine. Legal experts say it’s premature to clear a forest the size of 840 soccer fields while key aspects of the project remain unresolved. […]
In Nepal, controversial dam threatens endangered pangolins: Study
- The proposed Nagmati Dam in Nepal’s capital potentially threatens critically endangered Chinese pangolins by flooding their prime habitat.
- Researchers warn that pangolins are especially vulnerable due to their small home ranges and specific habitat needs, meaning even limited habitat loss could have severe population impacts.
- The dam’s environmental impact assessment is criticized for failing to properly acknowledge or evaluate risks to these threatened species.
- Beyond pangolins, other threatened wildlife in the park — including leopards and Himalayan black bear — may face displacement, increasing ecological stress and conflict risks.

Vaupés River contamination identified near rapidly expanding Amazonian town
- Indigenous people who live downstream from a rapidly expanding Amazonian town on the banks of the Vaupés River told Mongabay the river is contaminated by sewage and has made people sick.
- To verify this, Mongabay obtained water quality studies from the Corporation for Sustainable Development of the Northern and Eastern Amazon, which confirmed that sewage contamination and organic load are above safe limits and may impact public health and the quality of the aquatic ecosystem.
- Traditionally, the Macaquiño community downstream considers the Vaupés River to be a living being with whom they coexist and depend on it for bathing, fishing and human consumption.
- Public authorities in Mitú said the contamination stems in part from the municipality’s poorly constructed wastewater treatment plant, which was built on a flood zone and therefore frequently collapses, dumping untreated sewage into the river.

Asia’s longest free-flowing river contaminated by arsenic linked to Myanmar mines
- Independent testing of the Salween River began in September 2025 after researchers found alarming levels of toxic contaminants in the nearby Kok, Sai and Ruak rivers in Thailand, much of it linked to unregulated mining in Myanmar.
- Rare earth mines exporting crucial minerals needed for artificial intelligence, mobile phones, electric vehicles, renewable energy technologies and other uses have been blamed, but the mining of gold and various critical minerals also continues largely in secrecy across river basins in Myanmar.
- Most suspected mines were found upstream in the Salween’s basin, notably in Shan state, where various factions such as the United Wa State Army and the Myanmar National Democratic Alliance Army, as well as the Myanmar military, are fighting for territory.
- A working group was formed to address the growing issue of contamination across Thailand’s rivers, including the Salween, and tests showed arsenic levels at every monitoring point were more than double safety levels; news of the contamination has put local fishers and communities on alert.

In Tasmania, the mines have closed but the rivers remember
- Legacy copper mining in Tasmania, carried out for more than 100 years, has left parts of the King River ecosystem severely degraded, with scientists describing sections as “biologically dead” due to acid mine drainage and metal contamination.
- Globally, legacy mine waste has polluted hundreds of thousands of miles of rivers, exposing an estimated 23 million people to toxic metals, mostly through long-term sediment contamination rather than major disasters.
- Long-closed mines, which often operated with minimal or no environmental oversight, continue to leach waste from quarry and mine sites and tailings piles, causing long-term and ongoing contamination of rivers, streambeds and floodplains. Remediation across widely polluted landscapes is difficult and costly to carry out.
- Tasmania’s rivers are now a test case for the world: Despite decades of research and mitigation efforts, legacy pollution persists there, offering a warning as demand for critical minerals accelerates globally, with large amounts of copper and other metals required for electric vehicles, AI data center servers and other uses.

From carp to hippos, 43% of large freshwater animal species spread far beyond native ranges
From fish and turtles, to hippos and crocodiles, about 43% of all known large freshwater animal species have been deliberately introduced into ecosystems outside their native ranges, a recent study finds. Most species were introduced to boost fisheries, food security or tourism, but many have had unintended consequences for local wildlife, habitats and people. Fengzhi […]
Brazil: Satellites expose rampant gold mining expansion on Indigenous Kayapó land
The Kayapó Indigenous Territory has emerged as a major hotspot for illegal gold mining in the Brazilian Amazon’s Xingu River Basin, a major Amazon tributary. That’s according to a new report from the watchdog Monitoring of the Andes Amazon Program (MAAP). At least 7,940 hectares (19,620 acres) of forest on Kayapó land were cut down […]
Colombia’s main river redraws the map of little-known night monkeys
- A new study looks at genetic evidence to suggest that Colombia’s Magdalena River, and not the Andean massif, may be the true boundary separating two near-identical species of nocturnal primates.
- Night monkeys from the genus Aotus, the only nocturnal primates in the Americas, have remained largely invisible to both the public and the scientific community, says the study’s main author.
- Experts in the field say this discovery could fundamentally reshape national conservation maps and protection strategies for night monkeys.

Indian border town adjacent to Bhutan is reeling from riverbed pollution
Jaigaon, a densely populated town on India’s border with Bhutan, is facing a crisis of poor waste disposal, reports contributor Chandrani Sinha for Mongabay India. Much of the town’s plastic, construction and medical waste gets dumped along the banks of the Torsa River. The river originates in the Chumbi Valley in the eastern Himalayas and […]
Giant otters, river sentinels, now listed as threatened migratory species
- The giant otter was added to the list of animals needing protection under the UN Convention on Migratory Species, paving the way for international conservation actions.
- Studies reveal that their population decreased by 50% over the past 25 years as their habitat disappears and fragments and growing pollution fouls rivers.
- The new listing should promote cooperation between countries to protect the species as well as Amazon and Pantanal aquatic ecosystems, which are the otter’s strongholds.

Indonesia reviews firms in river basins after latest floods affect 7% of Bornean province
- The province of South Kalimantan experiences annual flooding, frequently worse than other Indonesian provinces on the island of Borneo.
- In late December, Indonesia’s environment minister said the government would review companies operating within watersheds in the province after a large share of the province’s 4.4 million people were impacted by floods at the end of last year.
- Civil society organizations and scientists say land-use change in the water catchment area has reduced the drainage capacity of soils and increased the likelihood of runoff, which inundates a large share of settlements in the province every year.
- A spokesperson for the environment ministry told Mongabay in March that a review of companies operating in the river basis was ongoing.

Who controls Mexico’s Yaqui River?
Water has shaped the identity, livelihoods and governance of the Yaqui Indigenous people in northern Mexico for centuries. Today, the Yaqui River faces mounting pressure as drought intensifies, pollution persists and water is increasingly diverted to agriculture and cities. In this award-winning series, staff writer Aimee Gabay explores how climate change is sharpening long-standing disputes […]
A nature-based solution to save the Mekong Delta’s water future (commentary)
- The Mekong Delta — a global rice and aquaculture hub — is increasingly at risk from climate change, with rising seas, salinity intrusion, pollution and groundwater depletion threatening the livelihoods of dependant communities and lives of millions of residents in the delta.
- In Vietnam, a proposed nature-based groundwater replenishment system aims to combine water treatment, aquifer recharge and wind energy to boost clean water supply, reduce salinity and stabilize the delta’s fragile ecosystems.
- Backers say the plan could deliver hundreds of millions of dollars in annual benefits through higher farm yields, improved public health and stronger climate resilience, though it will require major investment and coordinated governance to succeed.
- This article is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

325 Long-neglected migratory freshwater fish species need protection now: Report
- As national representatives gather at the UN COP15 Convention on Migratory Species (CMS) meeting this week in Brazil, a new global report has been released profiling a dangerously neglected category of migratory animal: the world’s freshwater fish.
- Migratory freshwater fish populations have fallen by 81% since 1970, says the report, with 325 species worldwide urgently needing coordinated international conservation action. However, only 23 migratory freshwater fish species are currently listed under CMS.
- More than half of the 325 at-risk freshwater migratory fish species documented by the report are in Asia, with the Mekong River of major concern. While international conservation cooperation is urgently needed, China and other Mekong basin nations are non-parties to CMS, as are the U.S. and Russia.
- What is needed now, conservationists say, are transnational migratory freshwater fish species conservation action plans that cover entire river systems, with those plans managed cooperatively by multiple nations within each river basin.

Indigenous groups demand halt to Belo Sun Amazon gold mine
More than 120 Indigenous protesters have occupied a federal building in Altamira in the Brazilian Amazon since Feb. 23. They are demanding that authorities block a Canadian mining company’s license to open one of the country’s largest open-air gold mines on the Xingu River. Led by a movement of Indigenous women, the protest follows a […]
Amazon waterway noise threatens unique social life of giant river turtles
- A planned shipping waterway on the Tapajós River, a major tributary of the Amazon, may disrupt the sophisticated social communication systems used by the Amazon river turtle (Podocnemis expansa), a species likely to be endangered.
- Underwater noise from barges risks drowning out the vocalizations used by adult females to guide their young during collective migration in the species’ second-most important nesting area, scientists say.
- The waterway is a central piece of Brazil’s new push to ease the transport of soybean and corn for export.

Thai data center boom sparks fears of water shortage, air pollution
- Thailand is experiencing a rapid data center boom, with more than 70 projects planned or underway, many clustered in the industrial Eastern Economic Corridor.
- Residents and farmers in Chonburi and Rayong provinces say they fear the facilities will intensify water shortages and pollution in a region already struggling with industrial impacts.
- Data centers require large volumes of water for cooling and major electricity supply, raising concerns about wastewater contamination and increased burning of fossil fuels.
- Critics say the sector is expanding with little transparency or community consultation, leaving locals uncertain about environmental safeguards and benefits.

Beyond the Potomac River, sewage spills threaten cities with old infrastructure and little funds
WASHINGTON (AP) — A major sewer pipe collapse has dumped hundreds of millions of gallons of sewage into the Potomac River, highlighting a nationwide problem involving failing infrastructure. The Potomac spill was a huge, but rare event that led to an emergency declaration and federal help. But across the country, sewer overflows happen tens of […]
The promise and perils of the 1995 Mekong River Agreement (commentary)
- Thirty years after the 1995 Mekong Agreement, the treaty and the Mekong River Commission have failed to stop cumulative damage to the river from dams, sediment loss, sand mining and altered flows.
- Hydropower expansion and major projects such as Laos’s mainstream dams and Cambodia’s Funan Techo Canal are accelerating ecological decline, harming fisheries, sediment flows and the Tonle Sap–Mekong system despite consultation processes meant to prevent such impacts.
- “This is not cooperation,” the author writes of the agreement. “It is a rat race tearing the Mekong apart.”
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Cambodian market survey a snapshot of a resilient — but stressed — Mekong
- In February, an international team of researchers conducted a two-week survey of fish species sold in markets in the Mekong River towns of Stung Treng and Kratie in Cambodia.
- The survey builds on a benchmark set by a 1994 survey in Stung Treng, allowing scientists to detect patterns in the size and diversity of fish being pulled from the river.
- The team identified 130 species, compared with 113 in the 1994 survey; 46 species were newly documented, many of them linked to aquaculture, while 29 species documented in 1994 were not found.
- Survey members say the tally shows the resilience of the Mekong, especially in places like Stung Treng where it remains undammed, but also points to worrying trends such as smaller fish dominating catches.

Falling Amazon river flows trigger reality check at Belo Monte power plant
- Studies warn that climate change could slash hydropower generation across the Amazon by up to 40%, with controversial Belo Monte among the most exposed plants in Brazil.
- Researchers and regulators say relying on historical river flows is no longer viable as droughts intensify and rainfall patterns drop.
- Belo Monte’s operator argues the plant remains strategic for Brazil’s energy security, despite growing climate risks.

Photos: In the Colombian Amazon, fishing binds a community to river and forest
- For members of the Macaquiño community in the southeastern Colombian department of Vaupés, fishing forms part of the deep cultural and spiritual connection they have with their waters and the species that inhabit it.
- The introduction of more intensive modern fishing gear, such as using longlines and mesh nets, has had an impact fish populations and has contributed to a decline in the use of some ancestral fishing practices, they said.
- Community elders told Mongabay that while some traditional fishing tools are still used today, few people know how to make them, raising concerns that fishers may eventually turn to other techniques that can damage habitats and reduce fish species.

Brazil revokes decree privatizing three Amazonian rivers after Indigenous protests
Brazil has revoked a presidential decree that placed sections of three Amazonian rivers — the Tapajós, Madeira and Tocantins — under a state-led privatization program. Indigenous groups had protested the plan for 33 days by blockading a Cargill grain port in Santarém in the western Brazilian Amazon. The decree was a part of a larger […]
Amazon riverfolk warn blasting rocks for shipping route will kill fisheries
- As Brazil moves to explode the deep, rocky river territory of the Lourenção Rocks, locals on the Tocantins River say the government’s refusal to recognize them as “impacted” excludes thousands of fishers from protections.
- Scientists compare the 43-kilometer (26.7-mile) rocky stretch to an “underwater Galapagos,” warning that detonations will destroy the quiet water pockets and deep rocks where rare species breed.
- The industrial shipping route is designed to accelerate global exports of soy and minerals, a move critics say prioritizes corporate profit over the survival of traditional peoples.

The Amazon’s most valuable export isn’t timber — it’s rain
- Tropical forests actively generate rainfall by releasing moisture into the atmosphere, with each square meter producing hundreds of liters of rain annually across surrounding regions. Clearing even small portions can measurably reduce precipitation, especially during dry seasons.
- Much of the rain that falls far inland originates from forests through long-distance moisture transport known as “flying rivers,” meaning farms, cities, and reservoirs may depend on ecosystems located hundreds or thousands of kilometers away.
- Reduced rainfall from deforestation can undermine agriculture, river flows, and hydropower, revealing forests as a form of natural water infrastructure that supports food production, energy systems, and economic stability.
- By assigning a monetary value to forest-generated rainfall, researchers estimate the service in the Amazon alone is worth on the order of tens of billions of dollars annually, underscoring that forest loss threatens not only biodiversity and carbon storage but regional climate systems themselves.

Seven years after Brazil’s worst dam disaster, mining operations bounce back
- Seven years after a dam holding mining sludge collapsed in Brumadinho, southeastern Brazil, killing 272 people, mining giant Vale and its partner Itaminas are resuming operations at the very same mining complex.
- The reopening of the Jangada mining site threatens the local community’s water security by potentially lowering the water table and compromising springs that supply hundreds of families in Brumadinho’s rural area, residents say.
- Residents, victims’ relatives and civil society organizations have flagged the lack of information about the environmental risks that persist in a territory scarred by one of the worst mining-related disasters in Brazil.

Fishers denounce plummeting fish stocks following Amazon hydroelectric dam
A hydroelectric dam impacting Brazil’s Amazonas and Rondônia states have slashed fished populations by as much as 90% in some locations, according to a new a study based on on-the-ground research in partnership with riverine communities. The 2008 construction of the Santo Antônio hydroelectric dam dramatically reduced the natural flow of the Madeira River, which […]
Farmers fear displacement, drought, flooding tied to Cambodia’s Funan Techo Canal
- The Cambodian government is set to begin construction of the Funan Techo Canal, a nearly $1.2 billion, 180-kilometer (112-mile) waterway navigation project that will cut across four provinces to connect the Mekong River to the sea.
- The primary rationale for building the canal is to reduce Cambodia’s shipping costs, as well as to generate jobs and economic development.
- Mongabay has followed this mega-project’s development for more than a year, speaking with more than 50 people living along the canal’s proposed route. Virtually everyone we spoke with noted that the government has provided very little information about the project, and amid the uncertainty, fear has taken root.
- In inland communities in the rich floodplains of the Mekong River, farmers we spoke with said they worried they’d lose their homes or land, and that construction would disrupt the annual months-long inundation of the wetlands they rely on for planting rice as well as for fishing, crabbing and raising livestock.

Ethiopia’s Renaissance mega-dam fuels energy hopes and regional anxiety
- Ethiopia inaugurated Africa’s largest hydroelectric dam in 2025, positioning itself as a regional energy exporter while millions of its citizens still lack access to electricity.
- Egypt, which lies downstream in the Nile Basin, views the Grand Ethiopian Renaissance Dam as an existential threat, warning of risks to Nile water security and regional stability.
- Scientists caution that dam failures or mismanagement could trigger catastrophic flooding in Sudan and Egypt.
- Critics argue that the dam may serve as a geopolitical and public relations tool, while its environmental and social impacts remain insufficiently assessed.

Communities join global push to protect European, Arctic & US peatlands
- A conservation effort across Finland, Canada’s Arctic and the U.S. is trying to establish one of the first coordinated efforts to protect and restore peatlands in Europe and North America.
- At the same time, communities and organizations are leading research activities, preserving Indigenous knowledge and creating artistic spaces to raise awareness about peatland conservation.
- Although peatlands cover only about 3-4% of the Earth’s surface, studies show they contain up to one-third of the world’s soil carbon.
- Given that peatlands are overlooked and face growing risks, sources say a cross-regional approach is timely for advancing peatland conservation while helping communities become better prepared and more resilient to climate change and mining impacts.

In the Brazilian Amazon, community conservation success comes with a cost: Study
- In Brazil’s western Amazon, community-led efforts to protect the pirarucu, one of the world’s largest freshwater fish, bring conservation benefits that extend into upland ecosystems.
- A study in Nature Sustainability found that by patrolling oxbow lakes along the Juruá River, communities effectively protect a mean area 86 times larger than the lakes they directly monitor, making this the largest community-based conservation initiative in the Brazilian Amazon.
- Local families bear the full economic burden of conservation efforts; surveillance represents 32% of total costs and reduces community income by 21%. Researchers say that using payments for environmental services would help ease pressure on communities.

Critical wetland in Angola gets formal Ramsar recognition
In a remote part of Angola’s highlands, a critical natural reservoir or “water tower” has been recognized as a wetland of international importance. Known to locals as lisima lya mwono, or “source of life,” the area supplies water to the region’s most important rivers and supports unique native wildlife. Officially designated last October by the […]
‘Holy river’ carries industrial waste & sewage from Nepal to India
- The Sirsiya River, once central to daily life, agriculture and religious rituals in southern Nepal, is now heavily polluted with industrial waste and sewage, turning it into a public health hazard.
- Factories in Nepal’s industrial corridor discharge untreated effluents as weak enforcement, ineffective regulation and unimplemented wastewater plans allow pollution to persist.
- Pollution flows into Raxaul, India, contaminating water and harming crops, while residents on other side of the border say Indian efforts to treat local sewage can’t offset the influx from Nepal.

What can—and cannot—be done to save the world’s glaciers
- Glaciers function as critical infrastructure, supplying water, food, and energy for nearly half the world’s population, even though they cover only a small share of the Earth’s surface. That support system is now contracting rapidly.
- Global measurements show sustained and accelerating glacier loss since the 1970s, driven primarily by human-caused warming. In many regions, what was once seasonal melt has become irreversible decline.
- The impacts extend well beyond the mountains, affecting agriculture, hydropower, ecosystems, and disaster risk in downstream communities across Asia, South America, and beyond.
- While scientists and policymakers are testing ways to manage shrinking ice and rising hazards, adaptation has limits. Without deep cuts in greenhouse-gas emissions, many glacier-fed regions will soon face long-term water decline.

Mercury, dredges and crime: Illegal mining ravages Peru’s Nanay River
- Mongabay Latam flew over the basins of the Nanay and Napo rivers, in Peru’s Loreto region, and confirmed mining activity in this part of the Peruvian Amazon.
- Environmental prosecutors say that there may be even more boats and mining machinery hidden in the ravines of both rivers.
- During the flyover, authorities confirmed the use of not only dredges, but also of mining explosives, which they say destroy the riverbanks.
- Almost 15,140 liters (4,000 gallons) of fuel have been confiscated from illegal mining networks around the Nanay River in the last two years, but authorities’ efforts seem insufficient.

Fish deformities expose ‘collapse’ of Xingu River’s pulse after construction of Belo Monte Dam
- Independent monitoring has found a high prevalence of deformities in fish in the Volta Grande do Xingu area of the Brazilian Amazon, following the construction of the massive Belo Monte dam.
- Potential factors could include changes in the river’s flood pulse, water pollution, higher water temperatures, and food scarcity, all linked to the reduced flow in this section of the Xingu since the dam began operating in 2016.
- Federal prosecutors are scrutinizing the dam’s impact, alongside independent researchers, and at the recent COP30 climate summit warned of “ecosystem collapse.”
- Both scientists and affected communities say the prescribed rate at which the dam operator is releasing water into the river is far too low to simulate its natural cycle, leaving the region’s flooded forests dry and exacerbating the effects of drought.

On Indonesia’s longest river, a Borneo community passes crucial public health milestone
- Sekadau is the largest settlement in a district of the same name on Indonesia’s longest river, the Kapuas River in Borneo.
- Historically, Sekadau has recorded higher rates of acute illness that local authorities suggested may be attributable to the widespread practice of open defecation in the river, a public health menace that exacts a range of costs from economic productivity to child stunting.
- This year, the district of Sekadau announced it had eliminated open defecation from all 94 villages in the district of 211,559 people, thanks in part to a campaign to build affordable toilets.
- Data collected by local authorities showed instances of ill health have declined swiftly over the last decade.

Mekong sand mining risks collapse of SE Asia’s largest freshwater lake, study finds
- Surging demand for sand used in construction projects poses an existential threat to Southeast Asia’s largest freshwater lake, new research indicates.
- The seasonal expansion and contraction of Cambodia’s Tonle Sap Lake is often referred to as the Mekong River’s “heartbeat” due to its fundamental role in sustaining ecosystems and human lives across the region.
- Sand mining in the Mekong River, particularly in Cambodia and Vietnam, has deepened the river channel, effectively halving wet season flows into Tonle Sap Lake between 1998 and 2018, the study found.
- The stark findings underscore the severity of sand mining impacts, adding urgency to calls for improved and coordinated river governance throughout the Mekong Basin.

Sámi reindeer herders protest EU-backed graphite mine, fearing lost grazing ground
- Sweden has approved the EU-backed Nunasvaara South graphite mine by Australia-based battery anode and graphite company Talga Group on land Sámi reindeer herders use for winter grazing.
- The mining company told Mongabay it has designed the mine area to limit the impact on nature and it plans to shut down operations for six months of the year to allow reindeer to graze on their winter grounds.
- But Sámi residents, who depend on herding, told Mongabay they fear their reindeer will be displaced because their winter grazing grounds will be destroyed, and they criticize the company’s environmental safeguards.
- They also said the mine’s inclusion as a strategic project under the EU Critical Raw Minerals Act has allowed it to be fast-tracked without essential environmental safeguards and that the company has made little attempt to meaningfully communicate with affected communities.

Ethiopian youth groups restore Rift valley lake & livelihoods
- Youth groups are restoring the ecosystem in and around Ethiopia’s Abijata-Shalla National Park, once covered with acacia woodlands but stripped bare in recent years as water has been lost to irrigation and a soda-ash factory.
- Spanning 887 square kilometers, the park is a vital refuge for biodiversity, hosting migratory birds and a range of species, making it one of the region’s most important wildlife strongholds.
- Wetlands International staff have trained local youth and community members in sustainable land management, teaching them how to identify and correct unsustainable practices such as overgrazing, deforestation and farming on steep slopes.
- The work relies heavily on consultations with local communities, ensuring solutions align with community needs.

In Nepal, the world’s smallest otter continues to elude researchers
- The Asian small-clawed otter was rediscovered in Nepal in 2024 after 185 years. Since then, however, it’s gone dark again, with no more confirmed sightings.
- Identifying the animal remains challenging due to its small size, dietary overlap with other carnivores, and resemblance to common species such as the crab-eating mongoose.
- Funding and logistical constraints impede targeted surveys, as conservation priorities in Nepal focus mainly on larger, charismatic species such as tigers and rhinos.
- Despite this, conservationists are already planning measures to reduce potential threats to the animal by including it into the national otter conservation action plan.

Marine heat waves and raw sewage combine to put human health at risk
- Climate change is fueling an increasing number of marine heat waves across the globe.
- When this intensifying heat is coupled with pollution — especially sewage, nitrogen fertilizer agricultural runoff, wildfire soot and possibly plastics — waterborne bacterial pathogens can multiply, raising human health concerns.
- These connections are exemplified in the escalating spread of Vibrio, a group of naturally occurring bacteria whose numbers are multiplying and undergoing global distribution shifts due to complex relationships between marine heat waves and pollution.
- Vibrio infections can range in severity but can result in sickness and death. One notorious Vibrio species is known as the flesh-eating bacteria; another causes cholera.

Earth’s freshwater fish face harsh new climate challenges, researchers warn
- Climate change is rapidly altering freshwater ecosystems — raising temperatures, altering flood pulses and oxygen levels — and driving complex, region-specific changes in how fish grow, migrate and survive.
- Long-term U.S. data show sharp declines in cold-water fish as streams and lakes warm, while warm-water species gain only slightly. Some cold-adapted species are now disappearing as deep waters cease being a cold refuge.
- From Africa to the Arctic, impacts are emerging, including stronger lake stratification, declining fisheries and rivers turning orange as thawing permafrost releases toxic metals. Declining freshwater fisheries increasingly put food security at risk, especially affecting diets and health in traditional and Indigenous communities.
- Scientists say management and conservation techniques rooted in past conditions no longer work. New approaches must anticipate shifting baselines as climate change rapidly accelerates.

Collapses of Amazon riverbanks threaten communities and shipping routes
- Extreme droughts, human interventions and growing boat traffic are contributing to riverbank collapses that endanger riverside communities in the Brazilian Amazon.
- Four public river ports in Amazonas state have been damaged by riverbank collapses in the past decade, prompting concerns about the safety of Amazon port infrastructure.
- Brazil’s Federal Public Ministry is investigating alleged failures to prevent collapses at regional ports that connect riverside communities and provide access to essential services.

Nepal Indigenous leaders refile writ petition against hydropower project
- In 2024, Indigenous Bhote-Lhomi Singsa people filed a writ petition against a hydropower project expressing concerns over what they say is a flawed EIA, forged signatures and community rights violations in Lungbasamba landscape, a biocultural heritage home to endangered flora and fauna.
- More than a year since the petition, leaders say the construction work has progressed in the absence of an interim order from the court to halt the construction, which has impacted their livelihoods, supported by farming, yak herding and trade in medicinal herbs.
- Demanding the project’s cancellation with an interim order to halt the ongoing construction activities, and to declare the EIA void, leaders filed another petition in November.
- Given the criticisms over the project and impacts outlined by the EIA report, the company says it still looks forward to the project, which is set to be completed in 2028.

With a target on their bellies, can California’s sturgeon survive?
- California’s green sturgeon and white sturgeon face numerous threats from dams, harmful algal blooms and overfishing.
- White sturgeon are highly prized for their eggs, which are made into caviar.
- Their numbers have dropped so precipitously that they’re now being considered for protection under the California Endangered Species Act.
- The state banned commercial sturgeon fishing in 1954, but the amount of poaching and caviar trafficking is unknown, and there have been cases linked to criminal networks involved in other illegal activities.

New mapping reveals hidden mining boom in Laos that threatens the Mekong
- Satellite analysis has identified 517 suspected riverbank mines in Laos, many likely illegal, with clusters along key Mekong tributaries, raising fears of widespread, unmonitored contamination.
- Officials in Attapeu province confirmed illegal mining remains pervasive despite crackdowns, with most operations missing from official records and many linked to Vietnamese or Chinese supply chains.
- The mining surge, including gold and rare earth extraction, poses major risks to ecosystems and communities in the Mekong Basin, where water testing capacity is weak and signs of declining fish populations and polluted rivers are emerging.
- Researchers say Mekong countries must coordinate regionally and engage China, the main importer of the region’s mining output, while strengthening enforcement and environmental oversight to address a rapidly expanding, largely unregulated mining sector.

In Chocó, river defenders say race for energy transition threatens lifelines
- Colombia is looking to accelerate its energy transition amid growing international demand for strategic minerals. But activists from El Carmen de Atrato in Chocó, western Colombia, allege that El Roble, the country’s only active copper mine, is harming the environment and local community.
- The Atrato River, which flows beneath El Roble, was granted constitutional rights in 2016, yet activists raise long-standing concerns over water pollution, tailings dam risks and alleged failures to meet conservation commitments in the area surrounding the mine.
- Critics say the mine has been allowed to operate under antiquated environmental regulation, with a modern environmental licence still under review.
- El Roble rejects all allegations, stating it is a responsible business that complies with environmental regulations. The company says it is the primary source of employment in El Carmen and points to its track record of local investment and community projects.

Scientists chart a new source, and length, for Africa’s famous Zambezi River
- Historically, the Zambezi River in Southern Africa was believed to begin its journey at a spring in northwestern Zambia.
- A new study suggests the river actually starts off in a shallow depression in Angola’s southern highlands, at the source of a river called the Lungwebungu, giving the Zambezi a new total length of 3,421 km (2,126 mi), or 342 km (213 mi) longer than previously thought.
- The Lungwebungu and several other Angolan rivers contribute about 70% of the water reaching Victoria Falls, making them critical to the long-term health of the Zambezi and the people and wildlife who depend on it.
- The study highlights the importance of protecting the Upper Zambezi Basin, where another recent study recorded significant forest loss over the past three decades.

Forest loss, fires and invasions soar in Nicaraguan wildlife refuge, watchdog warns
- The Rio San Juan Wildlife Refuge in southern Nicaragua is part of the best-preserved humid forest in Central America, but illegal invasions, deforestation and mining have destroyed nearly a third of this protected area in less than 10 years, according to an NGO.
- In a report, Fundación del Río alleges the invasions are encouraged by officials linked to the country’s ruling Sandinista National Liberation Front, as well as people close to President Daniel Ortega and his wife.
- The report warns of an increase in the trafficking of mercury and cyanide, typically used in illegal gold mining, which it says endangers the rivers in the region.
- It also says the invasions are displacing the Indigenous Rama people and Afro-descendant Kriol people who have long helped preserved the wildlife refuge.

New riverside lake in Nepal wins hearts, but faces government opposition
- The Bagmati Lake (Bharat Taal), constructed recently in Nepal’s southern Sarlahi district, attracts Nepali and Indian tourists with recreational activities, generating revenue, employment and cross-border tourism.
- The lake, which may have helped improve groundwater levels, soil moisture and crop yields in surrounding areas, has provided habitat for migratory birds.
- However, the fate of the lake hangs in the balance as the country’s anti-corruption court looks into alleged corruption and the lack of environmental compliance during its construction.

Bird diversity drops in human-dominated habitats, Nepal study suggests
- Areas dominated by humans are home to fewer species, with similar ecosystem function and proximity in the evolutionary family tree, a recent study in Nepal’s southern plains suggests.
- Human activities act like a filter, letting only certain birds survive. Even natural areas show signs of such filtering when logging and hunting remove sensitive species, leaving behind only closely related groups of birds that are resilient and adaptable.
- A mosaic landscape provides more “homes” and more ecological roles for birds, helping them survive even amid human disturbances.

Brazil nut hauling effort gets easier with zip lines and ‘Amazon Waze’
- Researchers are developing solutions to help Brazil nut collectors in the Amazon Rainforest reduce the physical toll of the trade.
- These include zip lines to haul heavy sacks across difficult terrain, and ergonomic baskets to reduce back strain while picking up the nut pods.
- These new technologies could encourage Indigenous youths to continue the practice, a crucial step for sustaining local communities who keep the Amazon standing.
- These advances are part of Brazil’s national push for a bioeconomy, a model designed to generate economic growth and social inclusion while protecting the rainforest.

Toxic runoff from politically linked gold mine poisons Cambodian rivers, communities
- Communities along Cambodia’s O’Ta Bouk River are experiencing severe water contamination, skin ailments and the collapse of fish stocks, which they blame on an unregulated gold mine operating upstream inside Virachey National Park.
- Satellite imagery analysis shows more than 2,400 mining sites across Mekong river basins — including alluvial and heap-leach gold mines — whose toxic runoff threatens rivers, floodplains, farmland, wildlife and millions of downstream residents.
- Communities downstream of the gold mine told Mongabay that authorities have failed to act on the problem, despite multiple indicators suggesting the pollution of the river is linked to mining activity.
- Documents show that a company linked to tycoon Try Pheap controlled the mining area at the time when communities reported pollution that’s left them fearful for their health, livelihoods and food security.

Lesotho communities allege greenwashing by project transferring water to South Africa
- The Lesotho Highlands Water Project (LHWP), a scheme to transfer water from Lesotho’s river systems to neighboring South Africa, also aims to provide hydropower to Lesotho’s people.
- However, complainants from communities impacted and displaced by the complex of dams, water channels, feeder roads, and bridges accuse the developers of promoting the LHWP as a climate mitigation project and ignoring its impacts on their livelihoods and the environment, and call it “greenwashing.”
- The project is degrading the environment, polluting water streams used by residents, destroying cultivable land used to grow food crops, eating into forests, and reducing access to pastures, according to the complaint filed with the African Development Bank (AfDB), which is partly financing the LHWP.
- “We are not just being denied benefits from the project, we are suffering harm from it,” the complaint says.

Makassar women press for water as taps and wells run dry in sweltering Indonesian city
- Located on the coast of Sulawesi Island’s largest city, Makassar, Tallo ward endures high water stress and contamination of local sources with heavy metals and other pollutants.
- Water stress is a well-documented driver of gender-based violence around the world, with extensive correlation established by numerous research studies, and causation in many circumstances.
- In Makassar, women are commonly responsible for ensuring local households are supplied with water, which typically involves hauling more than two dozen plastic containers of water across town.
- In response to these challenges, a grassroots women-led organization has entered direct talks with local political leaders and the municipal water company in a bid to improve access to water for consumption and sanitation.

Photos: Drones help First Nations track down cold-water havens for salmon amid warming
- Indigenous fisheries association and river guardians, representing several Mi’kmaq nations in eastern Canada, have launched a drone-based thermal-mapping campaign to locate and protect cold-water refuges vital for threatened Atlantic salmon.
- Warming temperatures are pushing the Atlantic salmon beyond their ideal thermal tolerance, compounding existing pressures on the species, such as overfishing.
- Warming waters and declining river flows during droughts are impacting both the fisheries and the cultural lifeblood of Mi’kmaq society.
- Indigenous river guardians hope the project will pre-emptively shield cool-water habitats before key spawning and migration corridors become unviable.

The price of gold: In Venezuela, mining threatens Indigenous Pemón
- Across southern Venezuela, Indigenous communities have been drawn into mining for gold as their traditional way of life has been disturbed and they lack other economic opportunities.
- Armed groups and a push for extractives have turned the Imataca Forest Reserve in the state of Bolivar into a mining hotspot, sources tell Mongabay, boosting deforestation and river pollution and destroying the livelihoods of Indigenous Pemón families.
- In Canaima National Park, the collapse of tourism and the COVID-19 pandemic have pushed communities into mining. Many operations in the park are run by Pemón, who own rafts, employ local workers and partner with external financiers providing machinery and fuel in exchange for a share of the gold.
- In theory, Venezuela legally guarantees land rights for Indigenous people and requires consultation on extractive projects, but communities denounce a lack of consultation, with both legal and illegal mining encroaching on their territories.

Healthy rivers, healthy people: A Brazil project links human & ecosystem well-being
- A night fishing trip 30 years ago showed Brazilian public health doctor Apolo Heringer the meaning of health: a clean river full of fish — a notion that inspired the Manuelzão Project to restore the Velhas River Basin in southeastern Brazil.
- The basin includes Belo Horizonte Metropolitan Region (BHMR), capital of Minas Gerais, the third-largest metropolitan region in Brazil and home to approximately 5.7 million people in 34 cities; here, the combination of high population density, inadequate urban planning and lack of infrastructure has damaged the rivers that cross the region.
- After sewage treatment plants began operating in the area, fish started returning to the waters; the dorado (Salminus franciscanus) was chosen as an indicator of good water quality since it needs a lot of oxygen to survive and polluted waters have low oxygen levels.
- Connections between the river, its health and people’s understanding are crucial to the Manuelzão Project and its goals for collective health.

Karen community fighting corn and coal for clean air in northern Thailand
- Northern Thailand is trapped in a cycle of air pollution driven by maize cultivation for the animal feed industry, with field burning each year choking the region in hazardous haze.
- Government crackdowns and “zero-burn” policies have failed because impoverished farmers see no viable alternative to burning amid falling yields and mounting debt.
- Deforestation, soil erosion and flooding linked to maize farming have devastated ecosystems and rural livelihoods across Chiang Mai province.
- Even as some communities ban maize cultivation to fight haze, new coal projects threaten to undo their gains, revealing Thailand’s conflicting approach to environmental governance.

India’s Ganga River drying at unprecedented levels
The Ganga River, which sustains the lives of at least 600 million people, is facing its worst dry spell and lowest streamflow in 1,300 years, according to a recent study, reports Mongabay India’s Simrin Sirur. Researchers extrapolated the Ganga’s water levels going back to the year 700 C.E. using a combination of paleoclimatic and historical […]
Indigenous communities protect Colombia’s uncontacted peoples
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. For more than a decade, two Indigenous communities deep in Colombia’s Amazon have been safeguarding those who wish to remain unseen, reports contributor Pilar Puentes for Mongabay. The residents of the Curare-Los Ingleses Indigenous Reserve and the neighboring […]
Thai agri giant CPF sues activist over claims linking it to invasive fish outbreak
- The head of a Thai NGO focused on agricultural monitoring and food sovereignty is being sued by agribusiness giant Charoen Pokphand Foods (CPF) for alleging the firm is linked to the outbreak of an invasive fish species in Thailand’s waterways.
- The lawsuit has been slammed as a SLAPP (strategic lawsuit against public participation) and a tactic to divert attention away from containing the outbreak and identifying the source and parties responsible.
- The blackchin tilapia has spread to at least 19 provinces, where it outcompetes wild and commercially viable aquatic species, disturbing ecosystems and devastating farmers’ livelihoods.
- The case comes as Thailand awaits public hearing of new anti-SLAPP regulations aimed at curbing judicial harassment.

Belém faces its social and natural demons as host to COP30
- Deforestation and the city’s historic shift from rivers to roads led to a massive influx of people into low-lying baixadas, where 57% of residents lack services, such as sewage, and are highly prone to flooding.
- The lack of trees in one of the Amazon’s most revered cities, especially in poor neighborhoods, contributes to projections that Belém will face 222 days of extreme heat by 2050.
- Experts argue that the infrastructure projects being implemented don’t offer sustainable solutions, reflecting a long-term failure to address Belém’s water and sewage crises.

Rare earth mining expands into Laos, threatening entire Mekong River
- Satellite data show at least 27 new rare earth mines have opened across Laos since 2022, mostly in protected areas and many within the Mekong River Basin, raising transboundary pollution risks for Vietnam and the wider Mekong system.
- Though rare earth mining is banned in Laos, operations — often funded by Chinese investors — continue under local-level permissions, reflecting weak oversight and growing Chinese influence as Laos seeks to boost its resource exports.
- Past incidents of chemical spills and fish die-offs have already harmed communities in northern and northeastern Laos, yet limited press freedom and civic space mean contamination and environmental impacts remain largely unreported and unmonitored.
- Experts warn that a rare earth mining boom could have severe ecological and social consequences, including deforestation, loss of livelihoods, and toxic pollution, with local communities powerless against unregulated mining backed by local elites and foreign capital.

Nickel mining damage near UNESCO site stirs outrage in southern Philippines
- A recent survey by the Davao Oriental provincial government engineering office revealed that a strip mine operating in the province had scraped bare about 200 hectares of forestland.
- After the survey, the provincial governor said the province would order the Pujada nickel mine to cease operations.
- The mine is within 10 kilometers of two protected areas: the Mount Hamiguitan Range Wildlife Sanctuary, a UNESCO World Heritage Site; and the Pujada Bay, a nationally protected seascape.

Negro River study finds genetic damage in fish after oil spill
- Scientists assessed harmful effects on Amazonian fish after a barge capsized in 2013 with approximately 60,000 liters of petroleum asphalt cement in Manaus.
- Although the concentration of the contaminant decreased with rising water levels, the fish continued to exhibit effects of exposure three months after the accident, including DNA damage and neurotoxicity.
- The Negro River’s waters are rich in dissolved organic matter, which may increase the toxicity of the chemical compound.
- This research adds to other studies that attest to the harmful effects of oil on vertebrates, aquatic insects and plants in the Amazon, given the pressure for greater exploration in the region.

More Thai rivers and downstream communities at risk from Myanmar’s rare earth mines
- Satellite data reveal 513 rare earth mining sites across rivers feeding into the Mekong, Salween and Irrawaddy in Myanmar, including 40 new ones in 2025 — far more than previously estimated.
- Toxic runoff from unregulated mines in Shan and Kachin states has polluted rivers flowing into northern Thailand, causing some $40 million in losses to farming, fishing and tourism.
- Communities in the Thai provinces of Chiang Mai and Chiang Rai are struggling with contaminated water and weak government response, prompting grassroots groups to demand testing, clean water sources, and a halt to imports from Myanmar.
- China’s tightening controls and rising demand for rare earths have fueled Myanmar’s mining boom, with conflict and lax oversight allowing environmental destruction and cross-border pollution to spread downstream through Southeast Asia.

A closer look at Peru’s Amazon reveals new mining trends, deforestation
- A new analysis from the Monitoring of the Andes Amazon Program shows differences in mining patterns in the central and northern departments of the country, compared with southern departments like Madre de Dios.
- The mapping analysis is one of the first visualizations of Peru’s mining problem on a nationwide scale.
- The organization called for a better gold traceability system and for small-scale and artisanal mining activities to be subject to stricter environmental oversight.

Indigenous monitoring project helps protect isolated peoples in Colombia’s Amazon
- Indigenous communities neighboring the peoples living in isolation in Colombian Amazon have spent more than a decade helping the latter remain separate from the outside world.
- Members of the Curare-Los Ingleses Indigenous Reserve and of the community of Manacaro use traditional knowledge and technology alike to monitor threats to their territory and to protect nearby communities living in isolation.
- In Manacaro, women take on traditionally masculine roles by patrolling the rivers, collecting data, and safeguarding their neighbors’ lives amid the advance of armed actors and illegal mining.
- Surveillance work has provided evidence of uncontacted peoples, such as the Yuri and Passé ethnic groups, which was fundamental in the federal government’s decision to formally recognize them.

‘We can have abundant rivers and wildlife’: Director of ‘The American Southwest’ on new film
- “The American Southwest” is a new film that explores the importance of the Colorado River in western North America to people and to wildlife.
- Part natural history film, part social documentary, it explores the challenges the Colorado faces as its resources are stretched thin by the demands for cities, energy and agriculture.
- Negotiations over the river’s water after a current agreement expires at the end of 2026 offer an opportunity for more equitable sharing that includes the river itself and long-marginalized representation from the Native tribes who live along the river’s length.
- The film appeared in theaters beginning Sept. 5 and on streaming platforms Oct. 10.

Climate change and aging drains wreak havoc on Kolkata, India
On Sept. 23, the city of Kolkata in eastern India came to a standstill: The capital of West Bengal state received more than 12% of the city’s average annual rainfall in just 24 hours, some 247.5 millimeters (9.7 inches). The subsequent flooding claimed lives and caused extensive property damage. Scientists say climate change has made […]
Cameroon inaugurates controversial dam despite local dissent
- The inauguration of Cameroon’s Nachtigal dam has boosted the country’s electricity supply.
- The dam’s construction has also led to loss of livelihoods for fishers and sand miners on the Sanaga River around the dam site.
- In 2022, these workers received compensation from the dam, but as the full dimensions of their losses emerge, they say this was inadequate.

Turning a stream into a river: Inside India’s Yettinaholé diversion project
- In Karnataka’s Western Ghats, a biodiversity hotspot, a river diversion project is bringing long-term changes to local villages — and the environment.
- The Yettinaholé Integrated Drinking Water Supply Project aims to divert 24 TMC of stormwater from the Yettinahalla and other nearby streams to several dry districts hundreds of kilometers away.
- Village life is also undergoing a series of development changes — as well as an uptick in conflicts with elephants coming from the nearby forests; meanwhile, local fishers wonder how many of the streams they rely on will become part of the diversion project, fearing for the future of their livelihoods.

Satellite data show burst of deforestation in Myanmar rare earth mining hotspots
- The largely unregulated mining of rare earth minerals in Myanmar’s Kachin state is taking a heavy toll on forests, rivers and human health, according to sources and satellite imagery collected by Mongabay.
- From 2018 to 2024, townships where the mining is concentrated lost about 32,720 hectares (80,850 acres) of tree cover in subtropical and moist forests.
- Researchers say all rare earth minerals from Kachin state wind up at magnet manufacturers in China, which supply some of the world’s best-known producers of electric vehicles, wind turbines and electronics.
- Myanmar’s ongoing civil war is a complicating factor in the issue, with the armed group that controls the Kachin mining sites currently renegotiating terms with Chinese companies and authorities that import the elements, while also formulating regulations for rare earth mining. Whether these will meet international standards remains to be seen, sources say.

Largest turtle nest in the world revealed in drone study
Scientists studying the world’s largest river turtles, a South American species that grows to a length of nearly a meter, or 3 feet, have found the largest nesting aggregation ever recorded. Using drones to conduct a population survey in the western Brazilian Amazon, researchers recorded a nesting area of the endangered giant South American river […]
Scientists are breeding rare and endangered animals in China’s longest river
WUHAN, China (AP) — A dozen sleek grey Yangtze finless porpoises glide inside a vast pool at the Institute of Hydrobiology in Wuhan as scientists find ways to protect and breed the rare mammals in China’s longest river. The Yangtze River is one of the busiest inland waterways in the world with 16 major ports. […]
Cambodian irrigation dam construction threatens riverine communities in the Cardamoms
- Cambodia has begun clearing more than 7,300 hectares (18,000 acres) of protected rainforest in Kravanh National Park to build an irrigation dam, with nearly 4,000 hectares (10,000 acres) to be submerged by its reservoir.
- The Cardamom Mountains, where the park is located, are among Cambodia’s last biodiversity hotspots, home to elephants, pangolins and gibbons, but dam projects and illegal logging are accelerating habitat loss.
- Villagers upstream of the dam say they’ll lose forest access, water and livelihoods, while downstream rice farmers stand to benefit; residents report they were not properly consulted.
- The project overlaps with a REDD+ carbon-offset area and appears to have broken ground without a completed environmental impact assessment, raising legal and transparency questions.

In Brazil’s Pantanal, too many tourists may be the jaguar’s new predator
- Once rare, jaguar sightings in the Pantanal now number more than 1,000 a year, drawing tourists from around the world.
- Ecotourism has transformed jaguars from hunted predators into valuable attractions, boosting local livelihoods.
- But overcrowding, with up to 30 boats surrounding a single animal, risks stressing wildlife and eroding visitor experiences.
- As safaris become increasingly popular, jaguars are getting more habituated to humans, drawing them closer to ranches, where conflicts arise.

Kafue River Transect
From its source in the wetlands near Zambia’s northwestern border, through the industrial zones of the Copperbelt, to where it plunges through a steep gorge toward the Zambezi, the Kafue River sustains some of Southern Africa’s richest ecosystems, vital to communities, wildlife, and energy production. Mongabay contributor Ryan Truscott joined an initiative exploring the river’s […]
Shrinking Mekong megafish underlines risks to the river, study finds
- A new study has found that the Mekong River’s largest freshwater fish are shrinking in size, with critically endangered species like the giant catfish and giant barb now averaging less than half their historical size.
- Researchers analyzed more than 397,000 samples of 257 species across Laos, Cambodia and Vietnam, finding that fish longer than 60 centimeters (2 feet) are shrinking fastest, while smaller species show little change.
- Overfishing, habitat loss, dam construction, sand mining, pollution and climate change are driving the decline, raising fears of collapse in one of the world’s most important inland fisheries.
- Scientists warn the trend mirrors global declines in large freshwater species, such as in the Amazon and Nile basins, but recent discoveries of massive fish like a 300-kg stingray show it’s not too late for recovery if urgent action is taken.

Escalation in tourism, climate change leaves Nepal’s Mustang in fragile state
- The completion of an all-weather road has transformed ‘lower’ Mustang, shifting from a remote trekking hub to a mass tourism destination. Visitor numbers has surged nearly 50% in one year, fueled largely by domestic and Indian Hindu pilgrims.
- Hotels and lodges have mushroomed along fragile riverbanks with weak zoning enforcement. Tourism water demands and usage have led to untreated sewage entering the Kali Gandaki River.
- Once arid, Mustang is now facing monsoon rains as Arabian Sea warming has started to push rain clouds farther north. The August 2023 flood devastated Kagbeni village, highlighting rising risks of flash floods and landslides.
- While tourism provides livelihoods and the energy is largely renewable, locals remain in the flux of economic opportunity and growing climate risks. Researchers call for urgent data, early warning systems and relocation from high-risk zones.

Development banks under fire for backing disputed Nepal hydropower project
- Civil society leaders in Nepal continue to raise concerns about the in-development Tanahu hydropower project in Gandaki province, citing a lack of proper consultation, inadequate compensation for displacement, and environmental impacts.
- Project developer Tanahu Hydropower Limited (THL), a subsidiary of the national electricity utility, says it has completed the consultation process.
- Half of the complaints against hydropower projects in Nepal documented by a rights watchdog are related to the Tanahu project, which receives funding from the Asian Development Bank, European Investment Bank and World Bank.
- Most of Nepal’s electricity is generated through hydropower, and the government plans to expand the country’s generating capacity nearly eightfold to 28,500 megawatts by 2035.

In western Nepal, farmers switch to growing turmeric; elephants stay away
- In western Nepal’s Bardiya district, farmers from marginalized communities are replacing traditional crops with turmeric — a plant elephants avoid — dramatically reducing human-elephant conflict.
- Backed by conservation groups and supported by scientific studies, the community-led shift to turmeric farming offers a replicable model for coexistence.
- The initiative combines traditional knowledge, scientific research and targeted support to turn a long-standing conservation challenge into an opportunity for ecological and economic resilience.

Displaced and dispossessed, Cambodia’s ethnic Cham fishers struggle to survive
- Ethnic Cham fishers in Cambodia say they face repeated evictions from their floating homes, often timed with major events and justified as environmental protection.
- They report unequal treatment by authorities, with harsher crackdowns on their small-scale fishing while larger, illegal operations go unpunished.
- Displacement and enforcement have pushed many into poverty, with little access to alternative livelihoods or support systems.
- Experts and advocates warn that current policies risk erasing Cham culture and call for more equitable, historically informed solutions.

Asia’s longest free-flowing river faces threats of dams and diversions
The Salween River, at around 3,300 kilometers, or 2,000 miles, is Asia’s longest free-flowing river, running from Tibet through Myanmar to the Andaman Sea. But Indigenous groups and communities living along its banks in China, Myanmar and Thailand say they fear hydropower development might cause the river to suffer the same fate as the Mekong […]
Can rainwater-fed ponds revive Bangladesh’s hilly streams?
- Natural streams in Bangladesh’s southeastern Chittagong Hill Tracts are drying up due to climate change and human activities.
- Rainwater harvesting in man-made ponds holds hopes for the revival of streams and could boost local biodiversity.
- The nature-based solution faces obstacles such as lack of resources and structural vulnerability.
- Experts suggest that co-management with the participation of local communities could bring good results to conserve such natural streams in the region.

Sacred sites & cultural practices key to Indonesia fish conservation: Study
- Researchers have found that sacred waters protected by Indigenous traditions are crucial for fish conservation in Indonesia but remain excluded from national conservation frameworks.
- The study highlights how cultural practices have long preserved aquatic biodiversity, urging their integration into official conservation strategies.
- Experts call for deeper anthropological insight and recommend recognizing sacred sites through Indonesia’s Essential Ecosystem Areas to connect traditional and scientific conservation.

Africa’s freshwater fish face a crisis — but solutions are within reach
A new WWF report is sounding the alarm on Africa’s freshwater fish: one in four fish species it assessed is at risk of extinction. These declines threaten not only biodiversity, but also the food security, livelihoods and cultural identity of millions of people who depend on inland fisheries across the continent. Released in the lead-up […]
Bicolored waterberry: The overlooked tree shaping Zambia’s rivers
- The bicolored waterberry (Syzygium guineense subsp. barotsense) is a dominant tree along the Kafue and other major Zambian rivers, where it plays a vital structural and ecological role.
- Though capable of self-pollination, the tree’s flowers attract bees, birds and moths, creating vibrant micro-ecosystems in its canopy.
- While not currently threatened, riparian clearing poses local risks, and the trees’ value to pollinators may offer a path to conservation.

River of giants: Canoe team tracks hippos in one of Africa’s last strongholds
- A team from The Wilderness Project has conducted a survey of hippos along Zambia’s Kafue River, one of the last strongholds of the species in Southern Africa.
- The expedition faced regular close encounters with hippos, which are highly territorial and can be dangerous to people, especially when traveling by boat.
- The team counted nearly 2,400 hippos, most of them along a 350-kilometer (217-mile) stretch of the Kafue within the Kafue National Park and adjoining protected areas, underscoring the park’s conservation importance.
- Despite their ecological significance as ecosystem engineers, hippos remain understudied and increasingly vulnerable to habitat loss and pollution, including upstream mining spills.

Native American teens kayak major US river to celebrate removal of dams and return of salmon
KLAMATH, Calif. (AP) — A group of several dozen Indigenous youth from across the Klamath Basin recently emerged victorious after a month-long journey paddling the Klamath River. The river is newly navigable after a decades-long fight to remove its four dams to restore the salmon run — an ancient source of life, food and culture […]
‘Hopeful sign’ as Eurasian otter reappears in Malaysia after a decade
Camera traps in Tangkulap Forest Reserve in Malaysia’s Sabah state have photographed a Eurasian otter — a grainy image of an individual ambling next to a waterbody. This is the first confirmed sighting of the species in Malaysia in more than a decade, bringing cheer to conservationists. The last confirmed Eurasian otter (Lutra lutra) sighting […]
Wildlife & tourists on the up in Zambia’s Kafue Park: Q&A with manager Craig Reid
- Zambia’s Kafue National Park, co-managed by Zambia’s Department of National Parks and Wildlife and conservation NGO African Parks, is home to up to 22 different species of antelopes, the highest diversity in Africa, more than 500 species of birds and at least 2,400 hippos in the river from which the park takes its name.
- Park manager Craig Reid says the nine game management areas that provide a buffer zone around the park have been modified in one way or another — including by climate-affected farmers and livestock herders — and illegal hunting also poses a threat to the core zone’s ecological integrity, as does pollution from mining and large settlements upstream.
- But, he says, around 3 million hectares (7.4 million acres) of the GMA buffer remains completely unsettled, and the park and the stretch of the Kafue that runs through it are doing well – more than $4 million worth of fish is sustainably caught within its boundaries every year.
- African Parks plans to introduce as many as 60 black rhinos to Kafue NP in the coming years and has already reestablished a thriving population of Kafue lechwe, a wetlands antelope unique to this landscape.

Canada’s Pacific Coast hit hard by trawling, with limited transparency: Report
- Trawling vessels pursuing fish are damaging marine ecosystems in Canada’s West Coast waters and could be operating illegally in some cases, and yet they work with insufficient transparency, a new NGO report says.
- Nine large trawlers have together trawled swaths of the ocean collectively larger than the size of Ireland since 2009; they have likely trawled in prohibited zones at least 47 times and have disrupted Chinook salmon (Oncorhynchus tshawytscha) migratory routes, which are foraging areas for an endangered population of killer whales (Orcinus orca), the report says.
- A trawling industry group dismissed the NGO’s findings, saying they lacked context and the fishery was very well regulated.
- A Canadian regulatory agency said the fishery was well managed, with strict monitoring and enforcement of rules.

‘Croc on a rock’: How a group of explorers suffers for science
- A team from The Wilderness Project is traversing Zambia’s Kafue River by canoe, collecting ecological data as part of a long-term survey.
- The expedition involves grueling portages over sharp, slippery rocks, close encounters with crocodiles and hippos and physically demanding conditions.
- Researchers gather DNA from fish and invasive crayfish, record nocturnal wildlife sounds and retrace a sampling transect first surveyed the year before.
- Despite the challenges, moments of beauty and wildlife encounters — from elephant herds to misty hornbill flights — punctuate the journey.

A success story at Zambia’s leopard hotspot: Interview with ecologist Chisomo M’hango
- At the Musekese Conservation research station, deep in Zambia’s Kafue National Park, trainee field ecologist Chisomo M’hango analyzes camera trap images of leopards, lions and wild dogs.
- M’hango and colleagues have identified 95 individual leopards, one of the highest densities of this vulnerable species anywhere in Southern Africa.
- The camera traps have caught relatively few lions, likely due to lack of prey in an area where widespread hunting of large antelopes has taken place for decades; M’hango says lion numbers are starting to rise, signaling renewed efforts to prevent poaching in the park and its buffer areas is bearing fruit.
- There are also encouraging signs that populations of wild dogs are recovering, with the single pair monitored soon after Musekese’s research began in 2020 multiplying into three healthy packs of this gregarious endangered carnivore.

From cattle to crayfish, human pressures mount on Zambia’s Kafue River
- A group of scientists paddled the length of Zambia’s Kafue River to document ecological pressures, including invasive species, habitat changes and human encroachment.
- Australian red-clawed crayfish (Cherax quadricarinatus) have infested the river, outcompeting native species, disrupting fisheries and altering fishing practices. The crayfish invasion spans nearly the entire 1,600-kilometer (995-mile) river, traced to an original introduction in 2001.
- Overgrazing and invasive plants like the giant sensitive bush are transforming some riparian zones, threatening biodiversity, including endemic species like the Kafue lechwe (Kobus leche kafuensis).
- Researchers with The Wilderness Project’s Great Spine of Africa project are using standardized field methods to monitor river health and the spread of invasive species to inform future conservation efforts.

Brazil court halts plan to blast 35-km river rock formation hosting endangered species
A federal court in Brazil has blocked the start of planned explosions along a 35-kilometer (22-mile) rock formation called Pedral do Lourenço in the Tocantins River, pausing a major infrastructure project until a judge can inspect the site. The decision suspends the federal government’s attempt to clear the way for large cargo ships to travel […]
Mining spill highlights need to protect Zambia’s vital Kafue River & its fish
- Researchers from The Wilderness Project (TWP) are documenting fish diversity along Zambia’s Kafue River to build a DNA reference library.
- The TWP scientists are collecting fin clippings and environmental DNA to help identify species, including some potentially new to science, without needing to catch them in the future.
- The river, a vital source of food and income for local communities, suffered from major pollution in February when a mine waste dam failed upstream.
- Protected stretches of the river within Kafue National Park offer crucial refuge for fish and other aquatic life, enabling recolonization after environmental shocks like toxic spills.

Bangladeshi village grapples with contaminated water flowing in from India
- A transboundary canal carrying wastewater from upstream India has been impacting the agriculture and aquatic resources of a village in downstream Bangladesh for several decades.
- According to data, the parameters of some essential components of the water, like ‘dissolved oxygen’ and ‘biochemical oxygen demand,’ exceed the tolerable limits of local aquatic species.
- The Bangladeshi government has raised concerns regarding the water pollution with its Indian counterparts and is continuing discussions to solve the crisis as per the bilateral and multilateral agreements.
- The government is also planning to set-up a wastewater treatment plant in the affected area to keep the water quality tolerable for agriculture, livestock use and aquatic species.

Banks bet big on fossil fuels, boosting financing in 2024, report finds
- Bank financing for the fossil fuel sector rose by $162.5 billion in 2024, more than 20% compared to 2023, according to a Rainforest Action Network report.
- Fossil fuel-related financing declined in 2022 and 2023, but in 2024 almost 70% of the 65 banks analyzed increased their funding for companies involved in fossil fuels.
- Experts say the findings demonstrate the limits of voluntary climate-related commitments by the banking industry, with many institutions backsliding on their promises to decarbonize their portfolios.
- They also highlight the importance of government regulation and civic action to address ongoing financial support for fossil fuel infrastructure and expansion.

Sweden needs a rights of nature legal framework (commentary)
- On July 1, the reassessment of Sweden’s hydropower plants will resume under the framework of its national plan.
- This is necessary, a new op-ed argues, because the expansion of hydropower has led to sharply reduced salmon populations, and eels are on the verge of extinction. These species are without rights, yet they have a natural right to exist.
- “Some might object that a river or an eel cannot speak in a courtroom. But there are also humans who lack that ability. In such cases, a legal guardian is appointed. In the same way, nature can be given representatives to act on its behalf in court,” the author writes.
- This post is a commentary. The views expressed are those of the author, not necessarily of Mongabay.

Nicaragua government tied to illegal land invasions in wildlife refuge, documents suggest
- Río San Juan Wildlife Refuge in southeastern Nicaragua has suffered a wave of deforestation in recent years, fueled by land deals that allow settlers to clear the rainforest for farming, mining and cattle ranching.
- Without government support, Indigenous and Afro-descendant communities have patrolled the forests on their own but are overwhelmed by the number of people settling in the area.
- Some residents have crossed the border into Costa Rica due to security concerns.
- Recently, the government also authorized more dredging on the San Juan River, despite losing a previous case about dredging at the International Court of Justice.

In Ecuador’s Amazon, Big Oil exploits Indigenous communities in the absence of the state
- Over the last 30 years, the three companies that have operated Block 10, an oil concession in the central Ecuadorian Amazon, have sought to divide local communities.
- They’ve also promoted practices intended to undermine residents’ autonomy, substituting for the state in providing basic services such as health care and education and creating disputes over job opportunities.
- An investigation by the cross-border project Every Last Drop reveals how Indigenous leaders and organizations are resisting these efforts.

Some rivers have rights, but author Robert Macfarlane argues they’re also alive
This week on Mongabay’s podcast, celebrated author and repeat Nobel Prize in Literature candidate Robert Macfarlane discusses his fascinating new book, Is a River Alive?, which both asks and provides answers to this compelling question, in his signature flowing prose. Its absorbing narrative takes the reader to the frontlines of some of Earth’s most embattled […]
Specter of dams and diversion looms over Southeast Asia’s Salween River
- The Salween River, one of Asia’s last free-flowing rivers, supports Indigenous communities and biodiversity across China, Myanmar and Thailand, but faces threats from at least 20 proposed hydropower dams, mainly in Myanmar.
- Myanmar’s postcoup instability has stalled dam construction, though powerful armed groups and foreign investors, particularly from China and Thailand, remain key players in determining the river’s fate.
- The Thai-backed Hatgyi Dam and the Yuam River Diversion Project risk submerging villages, displacing Indigenous Karen communities, and diverting massive amounts of water for agriculture in central Thailand.
- Local resistance, legal challenges and transboundary activism are mounting, with critics calling for permanent protection of the Salween and condemning the exclusion of affected communities from decision-making.

World Bank to finance controversial DRC hydropower project, concerns remain
The World Bank recently approved an initial $250 million in financing for the controversial Inga 3 mega dam project in the Democratic Republic of Congo, a move that worries civil society organizations. Inga 3 has long been planned as part of the Grand Inga hydropower project, a series of dams at Inga Falls on the […]
Rare earth rush in Myanmar blamed for toxic river spillover into Thailand
- Water tests from the Kok and Sai rivers near Thailand’s border with Myanmar have revealed elevated arsenic levels, leading Thai officials to warn citizens to avoid contact with river water.
- The pollution is widely believed to be linked to unregulated mining in Myanmar’s Shan state.
- Extraction of gold in Shan State has surged in the years since the 2021 military coup in Myanmar; more recently, mounting evidence suggests rare earth mining is also expanding across the state.
- Elevated arsenic levels have also been found at testing points in the Mekong, which is fed by both the Kok and Sai rivers.

The Yurok tribe have reclaimed Blue Creek, 138 years after it was taken from them
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. The Yurok tribe of northern California has achieved what once seemed impossible: reclaiming the 19,000-hectare (47,000-acre) watershed of Blue Creek, a cold-water artery vital to salmon survival and tribal identity. This marks the largest land-back conservation deal in California […]
The curse of river dolphin ‘love perfumes’ (cartoon)
Already imperiled by habitat loss, climate change and the recent incidences of droughts in the Amazon, the endangered Amazon River Dolphins have yet another curse cast upon them- the myth that the perfume made from their oil, known locally as pusanga, works as an aphrodisiac. Sold both in local markets and online, this trade threatens an […]
In Nepal, northernmost sighting of Eurasian otter raises hope, concerns
- The northernmost Eurasian otter sighting in Nepal was recorded in the Karnali River, raising hopes for the species’ range expansion. But as the animal was found dead in a fishing net, conservationists highlight challenges to the species’ conservation.
- Researchers emphasize the rarity of such sightings in high-altitude, remote areas like Humla, where otters had been considered cryptic or absent for decades.
- The discovery builds on a series of recent sightings across Nepal, including in urbanized Kathmandu Valley, suggesting a wider distribution than previously known.
- Threats to otters include overfishing, poaching, hydropower projects, sand mining and net entanglement, all of which imperil not just the Eurasian otter but also Nepal’s two other otter species.

In a big win, Yurok Nation reclaims vital creek and watershed to restore major salmon run
- Four dams are now down on the Upper Klamath River in northern California in the largest river restoration project in U.S. history. But a rarely mentioned cold-water creek is essential to restoring health to what was once the third-largest salmon run on the West Coast of North America.
- Blue Creek is located just 25 km (16 mi) from the mouth of the Lower Klamath at the Pacific Ocean. Critically, it’s the first cold-water refuge for migrating salmon that enables the fish to cool down, survive, and move farther upriver to spawn. The dams and logging have damaged this important watershed for decades.
- The Yurok, California’s largest Indigenous tribe, lost ownership of Blue Creek to westward U.S. expansion in the late 1800s. In 2002, a timber company, negotiating with the Yurok, agreed to sell back the 19,000-hectare (47,100-acre) watershed to the tribe.
- It took Western Rivers Conservancy, an Oregon-based NGO, nearly two decades to raise the $60 million needed to buy the watershed. In a historic transition, Blue Creek returns this spring to the Yurok for conservation in its entirety. The tribe considers the watershed a sacred place.

Study shows Vietnam’s ethnic communities’ grapple with hydropower plant impacts
- A recently published study based on fieldwork in northwest Vietnam shows how even small hydropower projects can have a large impact on communities.
- With an increase in small hydropower projects, residents of Bien La commune report loss of farmlands, fishing, local jobs and culture, as well as insufficient compensation.
- While these impacts force the villagers to migrate to other districts in search of jobs, the community women try to revive their culture of traditional textiles and indigo dyeing to preserve their way of life.

Villagers in Sumatra bring ancient forest flavors back to the table
- Women living around the 7th-century Muaro Jambi temple complex in Sumatra, Indonesia, have revived ancient ingredients and cooking techniques to serve one-of-a-kind meals to visitors.
- Their dishes are inspired by the plants and animals depicted on the bas-reliefs of another ancient Buddhist site: Borobudur in Java.
- The ancient menu has proved popular both among visitors and locals, who are rediscovering their agrobiodiverse heritage.
- The women have nurtured an ancient food forest and garden in Muaro Jambi to conserve the diverse wild plants and varieties in their menus.

Mining company returns to haunt Thailand’s Karen communities as resistance mounts
- A long-dormant fluorite mine is being reopened in northern Thailand, but the ethnically Karen communities that live in Mae Hong Son province’s Mae La Noi district are staunchly resisting the return of the mining company.
- Universal Mining, a Thai company, aimed to reopen its fluorite mine in 2021 following an injection of Chinese investments, but so far has failed to secure the environmental impact assessment needed to recommence mining operations in Mae La Noi.
- Experts warn that Universal Mining may be able to find a way around the environmental regulations as the Thai government has earmarked parts of Mae La Noi for extraction in its national mining strategy.
- According to rights advocates, the conflict brewing between the mining company and the Karen communities is a reflection of limited rights Thailand gives its Indigenous People.

Brazil set to blast 35 km river rock formation for new Amazon shipping route
- The Brazilian environmental agency, IBAMA, approved a license to blast a natural rock barrier on the Tocantins River in Pará state to enable boats to pass during the dry season, as part of wider efforts to build a massive waterway for commodities.
- Federal prosecutors requested the suspension of the license due to missing studies and other issues.
- A federal court stated that the proposed blasting will have a limited and controlled impact, asserting there are no Indigenous, Quilombola (Afro-Brazilian) or riverine communities living in that section of the Tocantins River — a claim that advocates say is inaccurate.
- Rock removal will impact endangered fish, Amazon turtles and the Araguaia river dolphin, which is found only in this region and feeds on fish that spawn in Pedral do Lourenço.

In Pakistan, desert irrigation plans spark protests & fears among Sindh farmers
- In Pakistan, thousands of protesters have fought against the Cholistan Canal Project, which would divert water from the Indus River to irrigate millions of hectares of desert for corporate farming.
- Opponents say the project would threaten local desert species and leave small-scale farmers and fishers in Sindh province without the water they need; this comes on top of an existing water shortage in the region.
- Water has been one of the region’s most contentious issues, dating back decades and causing a rift between Sindh province and the Federation of Pakistan; now, the future of Pakistan’s water is even more uncertain since India suspended the Indus Waters Treaty of 1960, which governs shared waters between the two countries.

Future of Mexican communal land in limbo as mining company overstays agreement
- Canadian mining company Equinox Gold has failed to implement a closure process after its land use and social-cooperation agreement with the Carrizalillo ejido in Mexico’s Guerrero state ended on March 31.
- It instead announced the indefinite suspension of its Los Filos mine, which the country’s agrarian attorney and legal experts say is not permitted in Mexico.
- Prior to the termination date, representatives of the ejido told Mongabay the company carried out a smear campaign to pressure them into signing a renegotiation proposal which they rejected because of its unfair conditions.
- Meanwhile, members of the ejido who rely on rent payments from the company to survive, have not received any compensation from the company and cannot return to their agrarian way of life because the mine occupies most of their land and the few available areas are contaminated.

Central Java villages take fast fashion to the cleaners at Indonesia’s Supreme Court
- Indonesia’s Supreme Court recently confirmed the bankruptcy of the country’s largest textile group, Sritex, which made garments for global fast fashion retailers like H&M.
- The court also awarded damages to 185 people in Central Java province who had filed a class action suit against a Sritex subsidiary over toxic gas leaks and river pollution.
- More than 10,000 Sritex workers lost their jobs as the heavily indebted firm collapsed, but local residents say the environment has showed signs of recovery since the subsidiary stopped producing synthetic fibers near Java’s longest river, the Bengawan Solo.

Antibiotic pollution widespread in world’s rivers, study finds
Nearly a third of all antibiotics that people consume end up in the world’s rivers, a new study finds. This could potentially harm aquatic life and impact human health by promoting drug resistance, researchers say. Antibiotics, critical for treating various bacterial infections, are widely consumed by people, livestock and aquaculture fish, but the drugs are […]
How manatees won over an entire village
BARRA DO MAMANGUAPE — Brazil. It’s hard to imagine today, but manatees were once hunted and eaten. These gentle sea mammals were considered a delicacy in Brazil, with their meat consumed by local fishermen and their skin and oil exported to Europe during colonial times. This exploitation pushed the species to the brink of extinction. […]
Dredging and pollution threaten fishing in the Niger River
- Some fishers in Bamako, Mali’s capital, are raising concerns about dredging of the Niger River in search of gold.
- They say the combination of dredging and increasing plastic pollution is causing fish stocks to decline.
- Damage to the river’s ecosystems is taking a toll on their livelihoods, with some forced to give up fishing for the more lucrative, but environmentally destructive, activity of river sand mining.

Barbara Yeaman, aviator and conservation pioneer, died April 6, aged 100
Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. In a farmhouse overlooking the Upper Delaware River in the U.S., Barbara Yeaman found her life’s calling later than most. At 70, when many were winding down, she set about founding the Delaware Highlands Conservancy, a land trust […]
Meet the Nepali lawyers defending nature one case at a time
- Lawyers in Nepal are increasingly turning to public interest litigation to demand accountability and stronger enforcement of environmental laws.
- They have filed public interest cases targeting issues like air pollution, deforestation, illegal quarrying and the misuse of protected areas.
- Their efforts have led to landmark rulings by the Supreme Court, including directives for better regulation and enforcement of existing laws. However, many of these rulings remain unimplemented due to government inaction and bureaucratic delay.
- Critics caution that while litigation is a powerful tool, it must be used judiciously, and that civil society must also mobilize to ensure environmental justice beyond the courtroom.

Amazon people brace for a drier future along the endangered Madeira River
- The Madeira River, the largest tributary of the Amazon, has been losing water flow over the last 20 years while facing severe droughts.
- The water drop is worrying the local population, whose livelihoods depend on balanced water bodies for small-scale agriculture, wild fruit extractives, fishing and transportation.
- The Madeira is particularly vulnerable to hydrological extremes and reached its lowest level ever recorded in September 2024.
- The Amazon has been warming since the 1980s, suffering 15 extreme droughts so far.

Winners of 2025 Whitley Awards, the ‘Green Oscars,’ are announced
This year’s Whitley Awards, commonly dubbed the “Green Oscars,” have been presented to seven conservationists from three continents working to protect and revive a diverse range of threatened animals and plants, including jaguars, yew trees and orchids, frogs, monkeys, gibbons, elephants and cranes. Presented since 1994 by the Whitley Fund for Nature (WFN), the Whitley […]
England’s flooded farmlands offer habitat, carbon storage & storm protection
When aging infrastructure failed to protect coastal farmland in southwest England from sea level rise, conservationists chose to embrace the flooding and created a new wetland reserve. Mongabay’s Leo Plunkett and Sandy Watt report in a recent Mongabay video that the newly created marsh has brought a host of benefits to the region. The Steart […]
Armed groups and junta profit as toxic mines devour southern Myanmar
- Since Myanmar’s 2021 coup, mining in the country’s southern Tanintharyi region has exploded, with the number of mining sites more than doubling as lawlessness enables rapid expansion.
- The environmental impact has been severe, with polluted rivers, dying crops, and communities losing access to clean water.
- Armed groups and junta officials profit from the boom by collecting bribes and taxes, turning mining into a revenue source across all control zones.
- Environmentalists warn that without immediate action and sustainable planning, the region’s ecosystems and natural resources may be permanently lost.

Vital Mekong fish corridors tracked for first time, but funding cuts threaten future research
- By implanting fish with small electronic transmitters, researchers were able to track key migration corridors in the Mekong River.
- The findings underscore the threat that dozens of planned dams along the Mekong will cut off these vital migratory paths.
- The study, which the lead author describes as a “pilot effort,” was funded by USAID; the funding gap caused by the U.S. foreign aid freeze leaves the future of such research in question.

Floods devastate normally arid parts of Australia’s Queensland
Intense flooding submerged usually dry areas of Queensland state in eastern Australia during the last week of March, forcing many people to evacuate and leave their livestock behind. David Crisafulli, the Queensland premier, called the floods “unprecedented” as several places in western Queensland recorded the worst floods in the last 50 years, CNN reported. Some […]
Groundwater overuse puts Brazil’s river flow at risk, study finds
- A recent study reveals the potential risk of river water flowing underground in Brazil due to high groundwater extraction, which could lead to losses in streamflow.
- Researchers found a correlation between groundwater use and river flow reductions, particularly in dryland areas.
- Overexploitation of groundwater could severely affect Brazil’s agriculture, energy production, and ecosystems, with illegal and unregistered wells likely contributing to the problem.
- Experts stress the importance of improving water resource management, with calls for better hydrogeological monitoring and more localized studies to better understand the potential harms facing Brazil’s water sources.

Brazil plans new Amazon routes linking the Pacific & China’s New Silk Road
- New roads and riverways integrating the Brazilian Amazon and ports on the Pacific coast of South America are expected to be announced in 2025, reducing shipment costs to supply China.
- Brazil’s plans to build ports and roads to help move grains, beef and iron ore from the rainforest echo a development vision that dates back to the military dictatorship in the 1960s and 1970s.
- Environmentalists warn the new routes boost deforestation and encourage land-grabbers and ranchers to keep exploring the Amazon as a commodity hub.

Locals debunk myths linking endangered pink river dolphins to ‘love perfumes’
A colonial-era myth about endangered pink river dolphins in the Amazon has led to a false belief that perfumes or pusangas made from their body parts are potent love potions. According to a recent Mongabay documentary, the myth has created a market for the perfumes, further endangering the dolphins. The film, released in February, follows […]
Sumatran culinary heritage at risk as environment changes around Silk Road river
- Research shows that landscape changes across the Musi River Basin in Indonesia’s South Sumatra province risks food security across the river delta as fish stocks diminish and protein availability declines, including in the provincial capital, Palembang.
- Some fish traders and artisans in the city of 1.8 million worry culinary culture in Palembang is becoming endangered as rising sedimentation in the Musi River threatens the freshwater snakehead murrel fish.
- Reporting in March, during the fasting month of Ramadan, showed prices of food staples made from this fish increasing sharply from previous months as demand surged for fast-breaking events.

Africa’s last tropical glaciers are melting away along with local livelihoods
- Africa’s remaining tropical glaciers are rapidly disappearing as greenhouse gas emissions drive global warming.
- New maps published by Project Pressure show the Stanley Plateau glacier, in Uganda’s Rwenzori Mountains, lost nearly 30% of its surface area between 2020 and 2024.
- The Rwenzoris’ glaciers are a vital source of water for more than 5 million people living in the plains below the mountain range; they also have cultural significance.
- Project Pressure’s ongoing surveys, carried out in collaboration with the Uganda Wildlife Authority, are intended to provide local authorities with data needed to adapt to the loss of the glaciers and other impacts of climate change.

Esmeraldas oil spill in Ecuador devastates rivers and wildlife refuge
A massive oil spill in Ecuador, in the northwestern Esmeraldas province, has covered multiple rivers and a key wildlife refuge in thick, black sludge, impacting more than half a million residents. A rupture appeared in a 500-kilometer (310-mile) pipeline operated by the state-owned oil company Petroecuador on Mar. 13, according to a statement by the […]
Indigenous Dayak community makes strides on Borneo toward forest autonomy
- In Mekar Raya, a semi-remote pocket of Ketapang district near the west coast of Indonesian Borneo, the local Dayak Simpan Indigenous society are navigating the complex bureaucracy of the state in a bid to gain semi-autonomous control of their customary forest.
- Under the national “social forestry” program, Indonesia’s central government has released more than 8 million hectares (20 million acres) from the national forest estate to management by local and Indigenous communities.
- The Dayak Simpan in Mekar Raya have previously resisted attempts by the palm oil industry to survey local land. Local sources say devolved management of the forest to the community will all but eliminate the risk of this land-use change.
- Several areas of the forestry are held sacred by the Dayak Simpan, with customary rules prohibiting the felling of trees or disturbance of water courses.

As the rainforest gets drier, Amazon Indigenous groups thirst for clean water
- The 2024 extreme and historical drought that hit the Amazon exposed a chronic problem: access to drinking water and sanitation in Indigenous lands, where only a third of households have proper water supply systems.
- In some Amazon rivers in Brazil, cases of diseases related to inadequate basic sanitation, such as malaria and acute diarrhea, have been increasing amid climate change and population growth.
- Indigenous organizations have been demanding the implementation of adapted infrastructures in the villages, such as water tanks, wells, cesspools and septic tanks.
- The Brazilian federal government already has resources and plans to begin addressing these issues.

Why is this endangered dolphin being killed to make “love perfumes”? | Wild Targets
IQUITOS, Peru – The Plight of the Pink River Dolphin is a short documentary investigating the illegal exploitation of endangered pink river dolphins in the Amazon, driven by a myth about their magical properties. The film reveals how pusangas—perfumes made from dolphin oil and body parts—are sold in markets and online, despite the species being protected […]
River culture is the rhythmic pulse of the Bengal Delta (commentary)
- Reviving rivers in Bangladesh is not simply an ecological issue, but also a socio-cultural one, and an economic imperative.
- The government and the people must come together to protect and restore the rivers, not just for environmental sustainability and justice, but also to preserve the rich heritage and cultural identity associated with these waterways, a new op-ed argues.
- This post is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Thai farmers demand action to restore ecosystems, compensate for invasive fish
- Citizens rallied in Bangkok this week demanding accountability and action from the government and private corporations following an outbreak of invasive fish that has ravaged Thailand’s freshwater ecosystems and aquaculture industry.
- Blackchin tilapia, an omnivorous species native to West Africa, is highly adaptable, breeds rapidly and is capable of outcompeting native wildlife and commercially farmed species, including shrimp.
- Thailand’s largest agricultural conglomerate has come under scrutiny because it obtained a permit to import the species in 2010, shortly before the first detections in the wild in the same province as its research facility.
- The activists urged the government to eradicate the species, compensate affected farmers and identity the parties responsible for the outbreak.

1 in 4 freshwater species worldwide at risk of extinction: Study
The most extensive global assessment of freshwater animals to date has revealed that a quarter of all freshwater animal species on the IUCN Red List are threatened with extinction. The largest number of these threatened species are found in East Africa’s Lake Victoria, South America’s Lake Titicaca, Sri Lanka’s Wet Zone, and India’s Western Ghats […]
Still no sweet spot in 2024 for Nepal in balancing conservation & development
- Nepal faces ongoing challenges in balancing the development of infrastructure such as roads, railways and hydropower dams, with the need to conserve its rich biodiversity, forests and rivers.
- Infrastructure projects continue to raise ecological concerns, including habitat fragmentation, pollution, and risks to wildlife.
- Plans like the rerouting of the East-West Railway and buffer zones around rivers in Kathmandu have sparked protests due to fears of displacement, loss of property and economic hardships.
- These conflicts underline the challenges of aligning development with community and environmental needs.

River dredging in Bangladesh: Investigation shows government claims don’t add up
- A large part of Bangladesh, the country with the highest number of rivers, is a delta formed by sediments carried down by rivers from the Himalayan region. The population’s most significant livelihoods — agriculture, navigation and inland fisheries — depend on these waters.
- These rivers carry about 2.4 billion tons of sediment annually, including sand, clay and silt, a large portion of which needs to be cleared by dredging for navigability.
- As per a 2017 notice by Bangladesh’s water transport authority, the country restored around 547 kilometers (340 miles) of waterways between 2009 and 2017 to the county’s river system. The authority’s 2022-23 annual report says that between 2010 and 2023, the volume of 3,700 km (2,300 mi) of waterways increased.
- However, Mongabay found the authority’s claims of restoring waterways on this large scale is only on papers, as many of the rivers that are recorded as dredged are still not navigable.

Grassroots efforts sprout up to protect Central America’s Trifinio watershed
- A major watershed in Guatemala, Honduras and El Salvador has been so polluted, industrialized and interfered with that 20% of it could dry up in the next few decades, according to a U.N. report.
- The Trifinio Fraternidad Transboundary Biosphere Reserve, which covers the triborder region of Guatemala, Honduras and El Salvador, suffers from a free-for-all of deforestation, chemical runoff and mining that threatens the existence of the watershed.
- If it dries up, millions of people could be left without water for drinking, bathing and farming.
- While conservation groups continue to lobby for funding, residents frustrated with government inaction have started to organize themselves to fight everything from mining and runoff to illegal building development.

Greater Mekong serves up 234 new species in a year, from fanged hedgehog to diva viper
- Researchers and local nature enthusiasts described 234 new-to-science species across the Greater Mekong region in 2023.
- Among the new assortment of critters are sweet-smelling plants, glamorous snakes, a dragon lizard, a psychedelic-orange crocodile newt, and several new mammals, including a mole shrew and a fanged hedgehog.
- The Greater Mekong is a fast-developing region of Southeast Asia, characterized by intensive agriculture, internationally significant inland fisheries and rapid urban expansion.
- As such, the newly described species and their habitats are under pressure from multiple threats, not least from the illegal wildlife trade that also flourishes in the region. Experts say consistent and concerted action is required to secure their future.

Andes glacier melt threatens Amazon’s rivers & intensifies droughts
- A new study found that Andean tropical glaciers have reached their lowest levels in 11,700 years, with drastic consequences for the Amazon due to the overlap of the two ecosystems.
- The findings come to light as record droughts in the Amazon in 2023 and 2024, exacerbated by climate change, have severely impacted local communities, including food insecurity and lack of access to drinking water.
- The ice loss in the Andes could reduce the water flow to the Amazon rivers by up to 20%.
- Venezuela is on the verge of becoming the first country in modern history to lose all its glaciers.

Thai citizens protest plans for Mekong dam amid transboundary concerns
- Citizens in northern Thailand staged protests along the shore of the Mekong River on Dec. 7 to draw attention to a controversial dam slated to be built on the river’s mainstream over the border in Laos.
- They demanded Thai banks and policymakers withdraw their support for the scheme due to its as-yet-unknown cross-border environmental and social impacts.
- The protests follow a particularly turbulent wet season marked by record-breaking floods that wrought high costs on riverside communities. Experts have said the dam would exacerbate such events should it be built.
- Halting the project to allow sufficient time for thorough transboundary ecological and social studies is absolutely critical, the activists said.

The uncertain future of Amazon river dolphins amid historic drought
- This year, the drought in Amazon rivers is already worse than in 2023, when 209 pink and grey river dolphins were found dead in Lake Tefé, in Amazonas state, largely due to overheating of the waters.
- To avoid a new tragedy, local organizations have taken action in advance, establishing emergency operations with stronger monitoring, staff training and equipment acquisition.
- However, no dolphin deaths due to heat stress have been recorded this year; instead, dozens of carcasses of aquatic mammals have appeared in Amazon lakes as a result of another sinister effect of drought: increased interactions with humans.

Researchers find high levels of mercury in Amazon’s Madeira River water & fish
- In a groundbreaking expedition, researchers from Harvard and Amazonas State University began monitoring water quality and mercury contamination in the Amazon Basin’s largest tributary.
- The Madeira River Basin has been heavily impacted by human actions, such as hydropower plants, deforestation and illegal gold mining, which degrade its ecosystems.
- Initial results from Harvard reveal high levels of mercury in the Madeira, although still below the limit recommended by Brazil’s authorities.
- Predatory fish species showed mercury levels above the recommended limit, while scalefish traditionally consumed by riverine populations were below.

Desalination plants proposed for Texas Gulf Coast spur broad opposition
- Corpus Christi is a city on the Texas Gulf Coast located close to water hungry industries in the drought plagued state, attracting multiple proposals to build desalination plants that would turn saltwater into freshwater for plastic manufacturers and other industrial end users.
- Desalination uses a lot of energy but also produces brine, which can be twice as salty as seawater and can contain elevated levels of heavy metals.
- This brine is set to be pumped back into Corpus Christi Bay or further out into the Gulf of Mexico, causing an array of stakeholders from the fishing community to birdwatchers to oppose the ‘desal’ plants.
- The director of one of the grassroots action groups discusses the situation in an interview with Mongabay.

Rappahannock Tribe first in US to enshrine rights of nature into constitution
- The Rappahannock Tribe in Virginia has become the first tribal nation in the U.S. to adopt a tribal constitution that grants legal rights to a river, specifically protecting the Rappahannock River’s rights to exist, flourish, and maintain clean water.
- The constitutional provisions allow the tribe and individual tribal members to bring legal cases on behalf of the river itself, with a tribal court system planned for 2025 to enforce these rights.
- This historic move comes from a tribe that has lived alongside and been sustained by the river for thousands of years, with Chief Anne Richardson describing the river as “the Mother of our Nation,” which has provided physical, cultural and spiritual nourishment to the tribe.
- The Rappahannock’s actions are part of a rights-of-nature movement that includes Ecuador’s constitutional recognition of nature’s rights in 2008 and New Zealand’s granting of legal personhood to the Whanganui River in 2017.

Studies link stronger dengue outbreak in Bangladesh to climate change
- A typical consequence of climate change, drier monsoons with sudden bursts of heavy rain has led to days of inundation and long periods of standing water, creating an ideal situation for breeding mosquitoes, which may be linked to the stronger outbreak of dengue.
- Bangladesh has experienced noticeable changes in the timing and characteristics of its monsoon season. Traditionally occurring from June to August, the monsoon now extends from July to early October.
- Dengue cases have risen dramatically worldwide, with Asia responsible for 70% of reported instances, according to WHO. Researchers indicate that temperatures between 27 and 32 degrees Celsius are optimal for the breeding of Aedes mosquitoes, the vectors of the viral disease.
- As of Nov. 18, the death toll from the dengue outbreak in Bangladesh is 415, with around 80,000 infected, while the country recorded 1,705 dengue-related deaths in 2023.

Dam displaces farmers as drought parches Indonesia’s Flores Island
- In 2015, Indonesia announced the construction of seven dams to provide water in East Nusa Tenggara province, an eastern region of the archipelago where access to freshwater is scarce during the annual dry season.
- One of the national priority dams, the Lambo Dam on Flores Island, has yet to be finished because of a land dispute with Indigenous communities in Nagekeo district.
- Research shows that much of Indonesia, particularly in the east, face increasing water stress due to climate change, as well as drought spikes brought on by the positive Indian Ocean dipole and El Niño patterns.

Organizations tackle droughts, floods in Brazil by planting forests
- Many areas of Brazil have been hit with severe droughts and floods in recent years; scientists say climate change is increasing the incidence of extreme weather events.
- Forests protect against erosion and pollution and help store water in soil and aquifers, buoying water security.
- Organizations across the country are leading efforts to reforest cleared areas — particularly along rivers and other water sources —to mitigate the damaging effects of droughts, floods and other effects of climate change, as well as safeguard and improve habitat for wildlife.
- Experts and stakeholders say broader support is needed at the federal level, while a representative of Brazil’s Ministry of Environment and Climate Change says the government is rolling out conservation plans of its own.

In Bhutan, a smoked fish tradition helps sustain a vanishing ethnic group
- Bhutan’s last remaining Olep hunter-gatherers rely on a traditional smoked fish, Nya Dosem, made from snowtrout (Schizothorax genus), to sustain their livelihoods.
- The community obtains special fishing permits to allow them to fish for these snowtrout, spending months along the Harachhu River and its tributaries in an area that is also home to the critically endangered white-bellied heron (Ardea Insignis).
- The Oleps’ fishing practices are monitored to ensure the local ecology is preserved, that spawning seasons are honored and that other local species are conserved; in this way, the environment sustains the Oleps, and the Oleps sustain the environment.

In Kenya, a river restoration initiative pays for itself, and then some
- The water supply for the Kenyan capital, Nairobi, depends on the Tana River, which flows for 1,000 km (620 mi) across the northern part of the country into the Indian Ocean.
- In recent decades, farmers have cut down forests to grow crops on ever-steeper hillsides in the river basin’s upper reaches, damaging water quality.
- The Upper Tana-Nairobi Water Fund was established in 2015, drawing money from corporations and government to pay for watershed restoration and reforestation of this vital resource.
- The fund has enjoyed some success, but obstacles include building up expert knowledge of nature-based solutions by officials in the water sector

Six months after its worst floods, Rio Grande do Sul works to bounce back
- A combination of wet El Niño weather and human-induced climate change were key drivers of the worst flooding event in Brazil’s Rio Grande do Sul state earlier this year.
- The flooding affected 90% of the state and displaced more than half a million people.
- Poor land management is also responsible for the region’s vulnerability to floods, as current agricultural practices in the highlands favor runoff and reduce the soil’s ability to soak up water, with lowlands particularly exposed to high waters.
- While some scientists are still deciphering the causes and behavior of the floodwaters, other experts are working to rehabilitate farmland, tackle soil erosion, and source native seeds for ecological restoration.

Mining and logging threaten Bolivia’s newest protected area
- The Gran Manupare reserve was created in January 2024 in northern Bolivia’s Pando department, making it the newest protected area in the country.
- However, the reserve already faces threats from gold mining along the Madre de Dios River, which forms its northern border.
- Logging is another threat that experts warn could enter Gran Manupare, which holds highly sought-after mahogany trees.

Largest dam removal ever, driven by Tribes, kicks off Klamath River recovery
- The largest dam-removal project in history was completed in October, freeing 676 kilometers (420 miles) of the Klamath River and its tributaries in California and Oregon.
- The project involved removing four dams, built between 1918 and 1964 to provide electricity. They had devastating effects on salmon populations and tribal communities, leading to a decades-long, tribe-led movement for their removal.
- The $450 million project involved complex engineering to remove the dams and, now, to restore the river ecosystem, including replanting native vegetation and reshaping the river channel, incorporating tribal knowledge to improve habitats for salmon and other species.
- The first chinook salmon in more than 60 years are already spawning above the former Iron Gate dam and a fall-run Chinook salmon was identified in Oregon for the first time in more than 100 years. Experts expect coho salmon populations to recover in six to 12 years and Chinook salmon in 15 to 20 years in what was once the third-largest salmon producing river in the contiguous U.S.

NGOs raise concerns over oil exploration in Republic of Congo national park
- NGOs are calling on the government of the Republic of Congo to revoke a permit allowing oil exploration in Conkouati-Douli National Park, the country’s most biodiverse area.
- They argue that oil exploration and exploitation will have a catastrophic impact on the park and local communities living in and around it.
- They also argue that the project runs counter to agreements reached with international donors to fund forest protection and breaks the Republic of Congo’s own environmental law.

Record-breaking floods in northern Thailand intensify scrutiny of Mekong dam project
- Major flooding along Mekong tributaries in northern Thailand has heightened scrutiny of plans to build a major hydropower dam spanning the pivotal watercourse over the border in Laos.
- Experts say the Pak Beng Dam would worsen severe seasonal flooding by elevating water levels upstream into the stretch of the Mekong that flows through northern Thailand.
- In 2023, Thailand’s national electricity authority signed an agreement to purchase electricity from the controversial scheme, essentially greenlighting the next phase of development.
- This week, farmers, activists and policymakers met in the flood-prone province of Chiang Rai to discuss the potential cross-border impacts of the dam, with many speakers urging the Thai government and Thailand-based investors to reconsider their support of the scheme due to the risks of the dam exacerbating devastating floods.

Supreme Court decision on saving Kathmandu rivers stirs up heated reactions
- The Supreme Court of Nepal has ruled to extend no-construction zones along major rivers in Kathmandu Valley, sparking varied reactions.
- Environmental activists praise the decision for addressing severe river pollution and encroachment, but the federal government has requested a review due to local opposition.
- The ruling introduces an additional 20-meter (66-foot) buffer zone, which would impact thousands of households, raising concerns about property rights and potential displacement.
- Critics argue the ruling will cause economic hardship and require substantial compensation, prompting the government and local authorities to seek revisions.

Extreme drought pushes Amazon’s main rivers to lowest-ever levels
- Amid an extreme, unprecedented drought, almost all major Amazon rivers have registered their lowest levels in history.
- Experts say the outlook for the next months is even worse, putting researchers on alert for the possibility of Amazon’s worst drought ever.
- The low river level in Manaus, Amazonas’ state capital, may increase prices of products shipped through the city’s harbor.
- The drought has isolated some Indigenous communities, while others have to walk long distances through dry riverbeds carrying groceries and equipment.

Lack of research as contaminated Yaqui River poses health risks
- Amid a water crisis, Yaqui communities in the northwestern Mexican state of Sonora lack safe drinking water due to contamination by arsenic, salinity and heavy metals as unveiled by several studies over the years.
- The water crisis, driven by decades of overexploitation, unequal water distribution and drought, intensifies contamination, particularly affecting coastal areas with saltwater intrusion and surpassing safe limits in certain regions.
- Members of the Yaqui tribe blame mining operations and agribusiness for the contamination, but there are few studies to confirm their source.
- They argue contamination has led to diabetes and health complications among community members, as well as cultural impacts.

Scientists find unexpected biodiversity in an African river, thanks to eDNA
- Scientists have used environmental DNA analysis to identify 125 species of aquatic and terrestrial animals in the remote Corubal River in West Africa.
- The identified species include critically endangered animals as well as species that weren’t previously known to occur in the region.
- The Corubal flows through Guinea and Guinea-Bissau; because of its remote nature, there haven’t been a lot of large-scale attempts to study the biodiversity in the river and its basin.
- The scientists are also working to collect specimens and tissue samples from animals encountered along the river to build a DNA reference database for the future.

In the Brazilian Amazon, seedlings offer hope for drying rivers
- In Brazil’s Maranhão state, the advance of monoculture and decades of forest destruction have driven a shift in precipitation patterns, diminishing rains and drying out springs that feed important rivers.
- This represents a major threat for the Guajajara Indigenous people, for whom these springs hold spiritual significance and guarantee the health of the rivers they depend on for fishing, bathing, drinking and cultural rituals.
- In an effort to restore drying springs, Indigenous people in the Rio Pindaré reserve are mapping headwaters and planting species native to the Amazon rainforest – like buriti, pupunha and açaí palms – along their margins.
- Scientists say this type of reforestation could help restore balance to water cycles in the region, mitigating the broader impacts of drought and climate change.

Rio Tinto-linked mine still not fulfilling promises to Mongolian herders
- In 2017, nomadic herders in Mongolia’s Gobi Desert secured an agreement obliging one of the world’s largest copper-gold mines, Oyu Tolgoi, to make good on a list of 60 commitments, including compensation and improved access to land and water.
- Today, compliance researchers and herders say two-thirds of these commitments are complete and or in progress, but complain of slow progress with the remainder, including the all-important issue of access to clean water.
- Communities have also expressed concern over seepage of mining waste into the groundwater, and say the company, a subsidiary of multinational mining giant Rio Tinto, should be held accountable.
- The nomadic herding way of life is on the decline the area due to lack of progress on achieving these other commitments, herders tell Mongabay.

Conserving & restoring waterways can mitigate extreme urban heat in Bangladesh
- Conserving existing wetlands and restoring urban waterways can be an effective way for urban planners to protect city residents from extreme heat.
- In Dhaka, as in other large cities, paved urban landscapes absorb heat and intensify the risk of heat waves. Areas of cities that are prone to such thermal intensity are known as “heat islands.”
- Urban sprawl frequently fills or covers wetlands and waterways as cities grow.
- Conserving green spaces is important to reducing urban heat and protecting people in cities from extreme heat, but conserving wetlands and waterways is even more effective.

A national park and its rangers in Bolivia endure persisting road construction, illegal mining
- Illegal mining continues in the headwaters of the Tuichi River in northwestern Bolivia, with miners encroaching into the strictly protected areas of the Madidi National Park.
- As part of a project backed by La Paz’s government, a road is being built through the middle of the protected area,.
- Madidi’s park rangers are living under constant strain. They are threatened and attacked by miners, and are unable to enter some parts of the protected area to carry out their duties.

The Andes are a key supplier of gold for the Amazon Basin
- In recent decades, gold mining in Peru is no longer only taking place in the Andean areas but also in the Amazon. There, illegal miners are increasingly exploiting the precious metal found in alluvial deposits.
- A similar situation can be observed in the Bolivian Yungas, very close to the Peruvian border in the Madre de Dios region. Despite operations against illegal mining, the activity persists.
- On the border of Ecuador and Peru, much of the area comprising the mineral-rich Cordillera del Condor has been set aside as a protected area or Indigenous territory, but there are still large areas open to mining, particularly in Ecuador where multinational corporate miners are investing in both copper and gold mines.

As waterbodies lose oxygen, are we breaching a potential planetary boundary?
- A new perspective piece argues that aquatic deoxygenation — the depletion of oxygen in marine and freshwater environments — should be considered its own “boundary” in the planetary boundary framework first proposed by scientists in 2009. Human-caused nitrogen pollution and climate change have greatly worsened aquatic deoxygenation worldwide.
- The planetary boundary framework defines nine natural biophysical and biochemical system processes that maintain the resilience of the Earth system, allowing life to thrive. But each boundary includes limits within which humanity needs to safely operate.
- The paper’s lead author says that increased scientific understanding of dissolved oxygen in marine and freshwater environments shows that it regulates, and is regulated by many of the other planetary processes, which in turn warrants the inclusion of aquatic deoxygenation in the planetary boundary framework.
- The framework is a rapidly evolving theory. Whether aquatic deoxygenation is already indirectly taken into account by the existing framework, as some argue, or whether it should be considered as its own planetary boundary remains to be determined.

Reporting confirms alleged Indigenous rights violations in Nepal hydropower project
- Tucked between mountains sacred to Indigenous peoples in eastern Nepal, a conflict is brewing between Sangrila Urja Pvt. Ltd., a hydropower company, and yak herders who say the company violated the law by lying in government reports.
- The tug-of-war between the hydropower company and the Bhote Singsa communities is taking place in the Lungbasamba landscape, a biocultural heritage home to endangered flora and fauna and that communities have preserved for generations.
- Mongabay was able to verify most of the communities’ claims and confirm fabricated information in the environmental impact assessment, forged signatures during a public hearing and a lack of proper consultation with the community. The company director refutes the allegations and evidence and says it awaits the resumption of its activities once a lawsuit filed by civil society organizations confirms they can move forward with the project.
- This report won first place from the 2025 Indigenous Media Awards for Best International Indigenous Coverage.

Holistic care for an Ethiopian lake system: Interview with Redwan Mohammed
- Redwan Mohammed leads a project to restore Ethiopia’s Ziway-Shalla river basin, which is under pressure due to deforestation and erosion.
- Abijata-Shalla Lakes National Park lies at the basin’s heart, centered on a pair of saline lakes that provide vital habitat to migratory waterbirds.
- The river basin is also home to around 60,000 farmers and herders as well as commercial flower farms and other light industry.
- Mohammed’s employer, Wetlands International, focuses on protecting wetlands because they provide essential ecosystem services such as water filtration, flood control, and habitat for wildlife.

Small steps towards larger goal of protecting East African wetlands
- Conservation NGO Wetlands International had lofty ambitions when it rolled out its Source to Sea project in East Africa in 2021, covering the Rift Valley wetlands and the Indian Ocean mangroves.
- Difficulties that arose included underestimating the time needed to get government agencies, civil society and community groups on board, overambitious planning, and communication barriers with locals.
- They quickly realized that residents’ urgent livelihood needs needed to be acknowledged and addressed before more abstract concepts such as wetland conservation and integrated catchment management could be introduced.
- Today, the project has made essential contributions to the lives of participating communities and the catchment’s health, created awareness of mangroves and wetlands among the different groups involved, and helped influence policies on water resource management.

In the wake of Bangladesh’s deadliest dengue outbreak, researchers respond
- In 2023, Bangladesh experienced the deadliest outbreak of dengue fever in the country’s history.
- Climate change will likely make severe disease outbreaks more common.
- Common prevention strategies, like insecticides, are becoming less effective as mosquitoes gain resistance and the nature of disease changes.
- In response, researchers, nonprofits and Bangladeshi residents are searching for ways to protect their communities and families.

A tribe once declared ‘extinct’ helps reintroduce salmon to the Columbia River
- For thousands of years, Kettle Falls was a vital salmon fishing ground for the Sinixt, but early 20th-century dam construction blocked salmon migration.
- Wrongfully declared extinct in Canada in 1956, the Sinixt fought for recognition and were officially acknowledged as Aboriginal Peoples of Canada in 2021.
- In 2023, the U.S. government signed a $200 million agreement with a coalition of tribes, including the Sinixt, to fund an Indigenous-led salmon reintroduction program into the Columbia River system above dams in Washington.
- Sinixt leaders say this project is an important effort to help right a historical wrong in the legacy that led to their “extinction” status, while many hope to one day join salmon efforts on their traditional territory in Canada.

In Sonora, communities fight mining to defend their water
- Since June 2, protesters have blocked mining company Grupo México from extracting water in the Sonoran town of Bacoachi, in northwest Mexico.
- Locals say the company has overexploited water resources during a regional drought, putting their livelihoods and public health at risk.
- The company owns the rights to more than half of the watershed’s total volume, according to a government analysis published in 2023.
- The ongoing protest comes as local advocacy groups are preparing to mark the 10th anniversary of an infamous waste spill from the same mine in August 2014.

Indigenous communities in the Bolivian Amazon combat droughts and floods
- The Tsimané, Mosetén and Tacana Indigenous ethnic groups in the Bolivian Amazon feared the worst for early 2024. They believed that the cycle of floods would bring misfortune and affect their communities
- However, the water management projects they have implemented have provided favorable results and helped the communities avoid disasters. This is an example of a communitywide effort to commemorate World Water Day 2024, which was March 22.
- Members of these Indigenous communities collect water from several watersheds and transport it through kilometers of pipes so that it reaches their homes, a complex engineering project that also has allowed them to adapt to the more intense droughts and floods caused by climate change.

On heavily dammed Mekong, tracking study tries to find where the fish are going
- Despite the huge environmental and economic importance of migratory fish in the Mekong River, there’s been little empirical data documenting where and how fish travel within the Lower Mekong Basin.
- For a recent study, researchers teamed up with fishers in Laos to tag hundreds of fish with transponders before releasing them to continue their migrations.
- The study found that these fish travel hundreds of miles along the river, including through several active and planned hydropower projects in Laos.
- It also found that at least a portion of the fish were able to traverse a fish ladder on an existing dam.

Loss of water means loss of culture for Mexico’s Indigenous Yaqui
- The sacred waters of the Yaqui tribe in the northwestern Mexican state of Sonora have dried up after decades of overexploitation, unequal water distribution and drought.
- This poses serious threats to Yaqui culture, which previously used certain sections of the Yaqui River for traditional ceremonies.
- It has also led to the decline of plant and tree species, such as the alamo (Ficus cotinifolia) and the giant reed (Arundo donax), which are used to build traditional structures in Yaqui villages.
- Important features of the Yaqui ritual dance, known as the pascola and deer, rely on the cocoons of the four-mirror butterfly, an endemic species that depends on the Yaqui River for its survival and is in decline.

Study to benchmark water quality finds key Amazon tributary in good shape
- Researchers have found that water quality in Brazil’s Negro River, the second-largest tributary of the Amazon, remains largely excellent, the result of a sparse human presence and strong conservation measures.
- The sampling of 50 sites along the main stream of the blackwater river was carried out to develop a water quality index (WQI) for this type of Amazonian river, which hasn’t been done before.
- In August, the research group will present this new WQI to the Amazonas state water resources council; if approved, the index will be used as the model for monitoring blackwater rivers in the state.
- The project on the Negro is the first of the program, which aims to develop a WQI for each of the largest rivers in Amazonas state, such as the Madeira, Solimões and Purus, and establish continuous monitoring during the wet and dry seasons.

Cambodia’s Funan Techo Canal project: A catalog of worries (analysis)
- Cambodia plans to build a 180-km (110-mi) canal from its capital to its coast on the Gulf of Thailand, a $1.7 billion project aimed at reducing its dependence on moving cargo through ports in neighboring Vietnam.
- But this analysis concludes that the plan is financially unfeasible, would have severe environmental impacts, and would exacerbate water scarcity in a region already suffering from critically low levels in the Mekong.
- The Cambodian government’s argument that the canal would make freight transport cheaper falls apart under cursory calculations, which show shipping costs will be even higher than via the Vietnamese ports.
- This article is an analysis. The views expressed are those of the author, not necessarily of Mongabay.

Indigenous communities in Sarawak left in the dark about hydropower proposal
- Malaysian officials recently announced new dam projects on three rivers in the Bornean state of Sarawak without the free, prior, and informed consent (FPIC) of local people.
- The managing director of the Sarawak-based NGO SAVE Rivers, Celine Lim, says her community relies on the Tutoh River for food and for transport, so the announcement “definitely threw the community into a frenzy because no one knew of this plan before the announcement.”
- Project opponents have gathered 650 signatures on a petition calling for more information from the government before the project can move forward, after initial requests for information were ignored.
- Lim joins Mongabay’s podcast to share with co-host Rachel Donald how the potential dam projects could impact the rivers and human communities, and reflects on lessons learned from a recent visit with Indigenous communities in California who successfully argued for the removal of dams on the Klamath River and are now restoring its floodplain.

As drought parches Mexico, a Yaqui water defender fights for a sacred river
- In the northwestern Mexican state of Sonora, Mario Luna Romero faces constant threats to his life for fighting to protect his community’s rights to its water in the region.
- Within the Yaqui Territory are the remnants of the Yaqui River, which is sacred to the Indigenous tribe and has been drained of all its water after decades of overexploitation, unequal water distribution and droughts. Mexico, including the Yaqui Valley, is experiencing a deadly heat wave, drought and water shortages.
- Luna was arrested in 2014 and spent a year and 11 days in a maximum-security prison; meanwhile, other colleagues have been harassed by government officials or killed by criminals.
- This 4-part series won for Best Coverage of Indigenous Communities as part of the 2025 Indigenous Media Awards.

Global migratory freshwater fish populations plummet by 81%: Report
- A new global study reveals an average 81% decline in migratory freshwater fish populations between 1970 and 2020.
- Habitat loss, degradation and overfishing are the main threats to migratory fish, which are crucial for food security, livelihoods and ecosystems worldwide.
- While 65% of species have declined, 31% have shown increases, suggesting that conservation efforts and management strategies can have positive impacts.
- The report calls for stronger monitoring efforts, protection of free-flowing rivers, and meeting global biodiversity goals to address this crisis.

From the Amazon to the Himalayas, an invasive catfish makes its Nepal debut
- Researchers discovered specimens of Pterygoplichthys disjunctivus, an Amazonian catfish, in a river in eastern Nepal, marking the first record of this species in the country’s rivers.
- How the fish ended up here remains uncertain, with possible explanations including religious release or upstream migration from India.
- Experts warn the presence of the species could severely disrupt Nepal’s freshwater ecosystems, due to the lack of natural predators and their potential to outcompete native species.

If forests truly drive wind and water cycles, what does it mean for the climate?
- Theoretical physicists Anastassia Makarieva and Viktor Gorshkov developed the controversial “biotic pump” theory more than a decade ago, which challenges traditional climate and hydrological science.
- The theory posits that forests drive moisture-laden air currents, thereby governing wind and rain and implying that further global forest loss could have unknown effects on weather and water supplies.
- While yet to be disproven or validated, some scientists say it’s vitally important to study and test this theory, and potentially include it in climate-modeling scenarios.
- Makarieva joins Mongabay’s podcast to discuss the theory and its implications for future climate modeling with co-host Rachel Donald.

In Indonesia’s Aceh, a once-isolated forest hosts local travelers on bamboo rafts
- In the semiautonomous region of Aceh, an Indigenous community has repurposed the bamboo rafts they use to commute downriver to sell tourism services to nearby urban settlements.
- The forests of Samar Kilang were once out of reach of Indonesia’s economy, until road access enabled local people to travel into the highlands.
- The nonprofit Katahati Institute has been working with women in Samar Kilang to market nontimber forest products and support the community’s ecotourism venture.

From Egypt to Syria, ‘water cancer’ chokes waterways
- Water hyacinth, an invasive species from the Amazon, is a major threat to freshwater life and livelihoods in Syria’s Orontes River and in Egypt’s Nile Delta.
- The plant grows and spreads quickly, outcompeting other species for space, oxygen, nutrients and sunlight.
- Along the Orontes, in a region controlled by opposition groups, farmers and fishers have little recourse for tackling the invasive species.
- In the Nile Delta, communities have more experience battling the plant and state-led dredging campaigns help clear water hyacinths every year, but they remain hard to control.

On World Otter Day, an uphill struggle for these creatures in Nepal
- Severe degradation of Nepal’s rivers due to overexploitation has negatively impacted otters and other aquatic species.
- Dumping of raw sewage and industrial waste, leaching of agricultural pesticides, and rapid urbanization and infrastructure developments are undermining otter habitats across the country.
- The widespread damming of rivers coupled with unsustainable fishing practices have also reduced food sources for Nepal’s otters.
- The country is home to two, possibly three, otter species, but conservationists say funding and attention for the welfare of these animals tend to be overshadowed by that for Nepal’s higher-profile wildlife, such as tigers and rhinos.

Will the Mekong and Salween pay the price of China’s energy transition?
- Proposals by some of the world’s largest greenhouse gas emitters to transition their energy sectors away from fossil fuels and toward renewables have generally been welcomed by the scientific community as progress in the right direction.
- However, while acknowledging the energy transition as essential, energy experts caution policymakers to also consider the unintended social and ecological consequences of scaling up renewable infrastructure, such as large-scale hydropower dams and wind and solar farms.
- A new study finds that China’s plans to decarbonize its energy sector by 2060 could have inadvertent but severe impacts on local farmland and transboundary river basins, including the regionally significant Mekong and Salween.
- The authors say that strategies to reduce electricity demand combined with increased investment in emerging energy technologies could curb the need for further hydropower expansion in the upper stretches of the pivotal rivers, thereby reducing cascading downstream impacts.

Banks backing Mekong hydropower failing on due diligence, report reveals
- A new report shows that major banks operating in Southeast Asia are failing to address the environmental and human rights consequences of their investments in large-scale hydropower dams along the Mekong River.
- The report from sustainable finance watchdogs reveals regulatory shortcomings at regional and national levels that it says fail to hold banks accountable for their investments.
- Riverside communities and rights groups have long questioned why banks operating in Mekong countries continue to fund environmentally damaging hydropower projects in neighboring countries, despite the high costs and consequences for communities in their own country.
- The report calls on financial institutions to adopt more sustainable banking policies and practices when deciding which projects to support.

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 2024 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.

Warming seas push India’s fishers into distant, and more dangerous, waters
- Many of India’s more than 4 million fishers are sailing beyond the country’s exclusive economic zone into the high seas in search of a better catch.
- Rising sea surface temperatures, overfishing near the shore, and the destruction of reefs have decimated nearshore fisheries, forcing India’s fishers farther out to sea where they face greater risk.
- A common danger they run is straying into the waters of another country, which can lead to their boats being seized and the crew being jailed or even killed.
- The Indian government has issued policies to protect and recover nearshore fish stocks, even as it encourages fishing in the high seas.

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.

One of Colombia’s largest estuary ecosystems is drying up, communities warn
- Decades of sediment pollution, contamination and government infrastructure projects have disrupted the natural flow of saltwater and freshwater into the Ciénaga Grande of Santa Marta, one of Colombia’s key wetlands and a major estuary on the Caribbean Sea.
- Fish stocks have also plummeted, with profitable, big species being replaced by smaller ones and leaving fishing communities without their livelihoods.
- Although authorities claim that they are investing in the region, locals complain the autonomous corporation in charge is not taking steps to dredge the canals and that there isn’t enough transparency on how the money is being spent.

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.

Projected Pantanal waterway threatens protected areas, may render navigation impossible
- Construction of a waterway on the Paraguay River could accelerate a dehydration process already underway in Brazil’s Pantanal, impacting priority conservation areas and quality of life in local communities.
- Licenses for new fluvial ports are already being issued along the river and a contract signed by the administration of President Luiz Inácio Lula da Silva makes way for dredging needed for barges loaded with ore and grains to pass.
- The Association for Tropical Biology and Conservation has published a resolution asking that the project not move forward because of the risks it poses to the Pantanal biome.

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.

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