location: Arctic

location: Arctic

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World Peatland Day honors a crucial ecosystem in the fight against climate change
Peatlands are boggy wet ecosystems found from boreal forests in the Russian Arctic to the tropics of central Africa. Typically, when vegetation decomposes it releases carbon dioxide into the atmosphere. However, when that same organic matter falls in a bog and is covered with water, carbon gets trapped and becomes sequestered there, sometimes for millennia. […]
Polar bears off the ice: Photo of the week
A polar bear, captured above, sits on a grassy expanse on Kolyuchin Island in the Chukotka district of far-eastern Russia. Several bears made themselves at home in the empty buildings of a Soviet-era research station, abandoned by humans in 1992. Photographer Vadim Makhorov took photos using a drone operated from an expedition vessel about 1 […]
‘Time stamps’ in shrubs show when beavers began invading Canadian Arctic
Beavers are expanding their range into Canada’s western Arctic, and a recent study has reconstructed when these ecosystem engineers first became active in the area — sometime around 2008. Historically, North American beavers (Castor canadensis) have been associated with boreal and temperate waterways. However, they’re increasingly being observed moving northward in the Arctic tundra. This […]
Antarctic fur seals now endangered as climate change reduces krill for pups
Antarctic fur seals are the smallest of the polar seals and live almost exclusively on the island of South Georgia. The latest assessment by the IUCN Red List of Threatened Species, the global conservation authority, upgraded fur seal extinction threat from least concern to endangered. The last assessment was carried out in 2014. Recent research […]
Emperor penguins are now endangered amid climate change and melting ice
Emperor penguins are native to Antarctica, where record low sea ice over the last decade has dramatically changed their habitat. Populations of the world’s largest penguin have fallen so much that they have now officially moved from near threatened to endangered in the latest assessment by the IUCN Red List of Threatened Species, the global […]
Canadian muskoxen hit by double punch of novel diseases and climate change
- New emerging diseases and other threats, including climate change, are upending muskox recovery in parts of the Canadian Arctic Archipelago.
- An emerging pathogen, dubbed Erysipelothrix rhusiopathiae Arctic clone, was linked to widespread muskox mortalities on Victoria and Banks islands from 2009-14. Another outbreak was identified on Ellesmere Island in 2021.
- Brucellosis, a zoonotic disease, is now appearing in muskoxen on Victoria Island and parts of the mainland, with rates increasing since 2015.
- These emerging diseases were identified, researched and tracked via an innovative community-based wildlife health surveillance program that teams up Inuit hunters and trappers, scientists and government agencies. Muskoxen are a key food source for many Inuit communities and play a vital role in Arctic ecology. Their loss could put food security and Indigenous culture at risk.

Outlook for migratory species worsens amid habitat loss & avian flu, report finds
- A U.N.-backed report finds that nearly half of the world’s migratory species protected under a global treaty are now decreasing — and about one in four now faces extinction.
- Habitat loss and degradation as well as hunting and fishing are driving these declines, but a deadly virus, Highly Pathogenic Avian Influenza, is also taking a heavy toll on bird populations.
- Wildlife corridors and protected ocean networks can play a pivotal role in conserving imperiled species: Animals need to move to find food, a mate and migrate.

Petrostates stymie effort to rein in Arctic shipping carbon emissions
- Black carbon emissions (colloquially known as soot) produced by marine shipping contribute to Earth’s warming climate and also reduce ice and snow cover. In the Arctic, those emissions are hastening regional heating and sea ice loss.
- In the 21st century, climate change has so diminished Arctic sea ice thickness and extent that transpolar crossings in summer by large numbers of commercial vessels has not only become possible but also increasingly frequent, resulting in a marked increase in black carbon emissions from dirty fossil fuels.
- In February, members of the International Maritime Organization (IMO) considered a proposal by several nations to require use of cleaner polar fuels, which emit lower amounts of black carbon. But the effort was blocked and delayed by large petrostates, including the U.S., Russia and Saudi Arabia.
- Implementation of the measure is expected to be delayed by at least two years. With Arctic sea voyages forecast to soar from thousands of trips annually to tens of thousands by 2050, NGOs are calling for greater support for clean polar fuels as a quick and effective way of reducing warming pressure on the Arctic region.

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.

Greenland sharks retain functional vision despite extreme longevity
Greenland sharks are the longest-living vertebrate known to science, topping out at more than 400 years old, and scientists have largely believed they were nearly blind. But new research suggests they actually can see, and, remarkably, maintain their vision for more than a century. Greenland sharks (Somniosus microcephalus) mostly live in the cold waters of […]
Climate change is straining Alaska’s Arctic. A new mining road may push the region past the brink
AMBLER, Alaska (AP) — In Northwest Alaska, a proposed 211-mile mining road has divided an Inupiaq community already devastated by climate change. The Western Arctic Caribou Herd has plummeted 66% in two decades while salmon runs have collapsed from record rainfall and warming waters. The Trump-approved Ambler Access Road would unlock copper deposits and other […]
Scientists slam Canada-US proposal to lower trade protections for peregrine falcons
- Peregrine falcons, the world’s fastest and most widespread raptors, recovered spectacularly after pesticides that nearly drove them to extinction were banned and captive-bred birds were rewilded, making the effort a remarkable conservation success story.
- Although the species is no longer endangered, international commercial trade in this bird, coveted by falconers, is banned for wild-caught specimens and highly regulated for captive-bred ones. Canada and the U.S. propose loosening those restrictions, a proposal that will be voted on at the upcoming meeting of CITES, the global wildlife trade treaty.
- Some raptor scientists have concerns. The Canada-U.S. downlisting proposal includes population estimates of just a few subspecies; many others are understudied. Some populations have declined in recent years and illegal trade continues.
- Until there are safeguards against unsustainable trade and accurate assessments for all subspecies, conservationists say lowering protections could undo the efforts that have brought this bird back from the brink.

Reindeer numbers may fall by more than half by 2100 as Arctic warms: Study
Global reindeer populations could fall by more than half by 2100 due to the impacts of climate change, including the shrinking of their habitats, according to a recent study, Mongabay’s Sonam Lama Hyolmo reports. Reindeer (Rangifer tarandus), known in North America as caribou, live only in frozen tundra and boreal forests near the Arctic, and […]
Antarctic conservation summit closes with stalemate on MPAs & krill fishing rules
- The annual meeting of the international body responsible for the conservation of Southern Ocean marine ecosystems concluded Friday with no progress on two contentious issues before it: the creation of new marine protected areas and the strengthening of regulations governing the fishery for krill (Euphausia superba), a species on which numerous iconic species of Antarctic wildlife depend.
- This year’s annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) was particularly tense, due to a clash between two occasionally overlapping groups of countries: on one side, those working to establish new marine protected areas (MPAs), and on the other, those more focused on increasing krill fishing.
- CCAMLR has considered proposals to establish three large MPAs annually for years but has failed to pass them under its consensus-based decision-making process. This year was the same, due to vetoes of MPA proposals by Russia and China.
- The combination of a lack of will to reinstate previously agreed regulations governing the krill fishery and a new push to drastically increase the krill harvest suggests a change in direction at CCAMLR toward more permissive fishing.

Stronger arctic cyclones speed up polar melting, impacting global weather
Powerful winds are ripping through the Arctic, breaking up critical sea ice that once acted as a shield against disturbance from wind and waves. Scientists warn the loss of sea ice is speeding up the region’s ecological collapse and could disrupt weather patterns far beyond the Arctic, contributor Sean Mowbray reported for Mongabay. In the […]
Norway’s proposal to double krill harvests raises tension at Antarctic conservation summit
- Norway has proposed almost doubling the catch limit for krill in the Southern Ocean, a proposal that has exacerbated tensions at the annual meeting of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) in Australia. Conservationists have expressed concern because the continent’s iconic wildlife depend on krill for sustenance.
- The CEO of Aker BioMarine, a Norwegian company that dominates the Southern Ocean krill catch, said it has been working with CCAMLR member countries to advance the proposal as well as create a marine protected area around the Antarctic Peninsula.
- Chinese and Russian delegates have voted for years to veto new marine protected areas in the Southern Ocean.
- Russia came into the spotlight at this year’s meeting following its arrest of Leonid Pshenychnov, a researcher at the Ukrainian Institute of Fisheries, Marine Ecology and Oceanography and a longtime member of the Ukrainian delegation to CCAMLR.

Arctic seals edge closer to extinction as sea ice vanishes
- Three Arctic seal species have been moved up to higher threat categories on the IUCN Red List, with one now endangered and two now near threatened.
- Global warming is melting away the sea ice they need for breeding, resting and feeding, which has led to widespread breeding failures among ice-dependent seals.
- Loss of sea ice is also opening the region to more human activity, including shipping and oil exploration, bringing added disturbance, noise and pollution.
- The IUCN warns a similar pattern is emerging in the Antarctic. It says urgent global emissions cuts, along with stronger local protections such as reducing bycatch and pollution, are needed to prevent further declines.

Climate change puts pressure on reindeer populations, both wild & domestic herds
- In Finland’s Arctic, unpredictable weather events pose a threat to reindeer herding, a traditional livelihood for the Indigenous Sámi people.
- Due to climate impacts, the global reindeer population could decline by more than 50% by 2100, with the steepest declines expected in North America, at 84%, and population increases predicted in northern Asia, according to a study.
- The impacts of climate change also affect semidomestic reindeer herds, according to researchers, and additional pressures, such as logging old-growth forests and expanding extractive activities on grazing lands, shrink their access to food sources.
- Sustainable land management, such as protecting ecological corridors and old-growth forests, plays a vital role in maintaining reindeer populations and preserving migration routes, one author says.

Alaskan rivers turn orange as permafrost thaws, threatening fish and communities
- A new study found that 75 streams in Alaska’s Brooks Range have turned orange due to thawing permafrost, which releases metals like iron, aluminum and cadmium that exceed U.S. Environmental Protection Agency safety thresholds for aquatic life.
- The contamination threatens fish populations, with aluminum concentrations at one location reaching nearly five times the safe limit, and the study suggests this may help explain recent crashes in chum salmon returns that Indigenous communities depend on for food and income.
- The pollution flows hundreds of miles downstream to coastal communities like Kivalina, where residents who rely on traditional fishing face threats to food security as some tributaries of rivers like the Wulik have begun turning orange.
- Scientists warn that this climate change impact is irreversible and spreading across the Arctic, with no cleanup options, as these remote watersheds contain hundreds of contamination sources.

Scientists weigh giant sea curtain to shield ‘Doomsday Glacier’ from melting
- Scientists have proposed using anchored seabed curtains to block warm ocean water from accelerating ice loss at Antarctica’s rapidly melting Thwaites Glacier — a possible climate fix that falls into the realm of geoengineering.
- Thwaites is losing 50 billion metric tons of ice annually and could raise sea levels by more than 60 cm (2 ft) if it collapses.
- Critics warn that a handful of proposed geoengineering projects in the world’s polar regions distract from decarbonization efforts, while supporters argue some geoengineering may be a necessary last-resort measure as governments fail to address rising greenhouse gas emissions.
- The curtain project could cost up to $80 billion, scientists estimate, but may prevent trillions in climate-related damages.

No new record low for Arctic sea ice loss in 2025
- Arctic sea ice hit its 2025 summer minimum without setting a record low on Sept. 10, despite a historically low winter maximum earlier in the year.
- Scientists say sea ice loss has slowed over the past 20 years due to natural variability in atmospheric and ocean systems, counterbalancing the impacts from human-caused climate change.
- However, researchers warn that this slowdown likely offers only a temporary reprieve, and that the continued escalation of global warming could cause rapid sea ice loss before 2050.
- The U.S. National Snow and Ice Data Center for the first time switched to using Japanese sea ice data after losing access to key U.S. military satellite data, which had allowed for a continuous Arctic sea ice record since 1979.

Antarctic coalition wins €1m prize for safeguarding a fragile frontier
The Antarctic and Southern Ocean Coalition (ASOC), an advocacy group focused on the world’s coldest and most remote region, has received the 2025 Gulbenkian Prize for Humanity. The 1 million euro ($1.17 million) award, presented by the Portugal-based Calouste Gulbenkian Foundation, recognizes the coalition’s decades-long efforts to preserve Antarctica’s ecological integrity and protect the Southern […]
Orcas discovered making tools from seaweed to ‘massage’ each other
- Southern resident killer whales in the Salish Sea off the U.S. state of Washington have been observed making tools from bull kelp stalks, biting off pieces and using them to massage each other in a behavior scientists call “allokelping.”
- This represents the first documented evidence of toolmaking by marine mammals, with whales of all ages participating in coordinated grooming sessions that likely serve both hygiene and social bonding purposes.
- The behavior helps whales exfoliate dead skin and may provide antibacterial benefits, though the endangered population of only 73 individuals faces multiple threats including declining food sources and habitat destruction.
- The bull kelp forests where whales source their grooming tools are also threatened by warming oceans, making conservation of both the whale population and their kelp habitat crucial for preserving this unique cultural behavior.

Paris goal of 1.5°C warming is still too hot for polar ice sheets, study warns
At the landmark Paris climate agreement, nearly every country in the world pledged to a goal to limit warming to well below 2° Celsius (3.6° Fahrenheit) above preindustrial levels by 2100, and work toward a more ambitious goal to limit warming to 1.5°C (2.7°F). The hope is that such a limit will help Earth avoid […]
Record-breaking heat wave due to climate change hits Iceland & Greenland: Scientists
In May, both Iceland and Greenland experienced record-breaking heat. A new rapid analysis has found that the heat wave in both regions was made worse and more likely in today’s warmer climate. The analysis was conducted by World Weather Attribution (WWA), a global network of researchers that evaluates the role of climate change in extreme […]
Manage people more and bears less, say Indigenous elders in world’s ‘polar bear capital’
- Indigenous residents of Churchill in Canada’s Manitoba province have coexisted with polar bears for thousands of years, emphasizing respect for the animals and staying out of their way.
- The province-run Polar Bear Alert Program also aims to keep the community safe from overly curious or dangerous bears, but some of its practices have been called into question by locals.
- Churchill’s tourism industry drives the local economy and is also the source of most problematic human-bear interactions.
- As climate change causes bears to spend more time on land, Churchill leaders are working with local and regional stakeholders to improve human-polar bear coexistence.

Winter warming and rain extreme events pose overlooked threat to Arctic life
- Accelerated Arctic warming is reshaping the polar environment, but focusing only on the impacts of long-term annual temperature rise can miss key consequences of shorter-lived, but extreme, weather shifts coming as a result of climate change.
- A new meta-analysis highlights how extreme weather events in winter, such as rain-on-snow and temperature spikes, are increasing across the Arctic — though not every region gets the same extreme whiplash weather.
- Even short surges of wild winter weather — 24 hours of rainfall on snow-covered ground, for example — can decimate animal and plant populations and change an ecosystem for generations. One such rain-on-snow event in 2023 killed nearly 20,000 musk oxen in the Canadian Arctic.
- Better understanding of Arctic winter weather extremes (along with their immediate and long-term effects on flora and fauna), and factoring these into climate models, could help create more accurate, effective, region-specific conservation plans.

With deep-sea mining plans in limbo, Norwegian companies fold or dig in
- Norway’s plans to mine seabed minerals in Arctic waters remain in limbo after the first licensing round was delayed in December 2024. However, the government maintains that progress will resume soon, with a licensing round tentatively set for 2026.
- Some deep-sea mining companies have faced significant financial struggles due to the delay, with one company going bankrupt and another slashing costs; yet, other firms remain optimistic, insisting the industry’s future is still secure.
- Experts warn that considerable knowledge gaps must be addressed before deep-sea mining can proceed, particularly regarding environmental impacts.
- In Norway, the industry also continues to face heavy opposition from environmental groups, the fishing sector, and several political parties.

Melting Antarctic ice could weaken world’s strongest ocean current, study warns
The strongest ocean current on Earth circles Antarctica. It’s the primary way water moves between the Atlantic, Pacific and Indian oceans, and helps regulate the global climate. But a new study suggests the Antarctic Circumpolar Current (ACC), which until now has been extremely stable, might begin to slow down in the next 25 years, with […]
Rare polar bear cub footage offers crucial conservation insights
- Scientists have captured rare footage of female polar bears and their newborn cubs emerging from maternal dens in the Arctic.
- Using remote cameras and satellite collars, researchers were able to track down polar bear dens in Norway’s Svalbard region and get insights into their behavior.
- On analyzing the data, researchers found that the bears typically stayed in and around the dens for 12 days after first emerging from them; they were also found to abandon the dens earlier than previously thought.
- Polar bear denning and the subsequent den emergence is a crucial period during which cubs transition from the warm environment of the dens to the harsh environment outside; the amount of time cubs spend in the dens is believed to have implications for their survival.

Polar sea ice continues steep decline; but will a troubled world notice?
- Polar sea ice has reached record, and near-record, lows for this time of year, pushing the pace of global warming and alarming scientists. The just declared 2025 Arctic sea ice extent winter maximum is the lowest on record, at 14.33 million km² (5.53 million mi²). That’s 80,000 km² (31,000 mi²) below the previous low seen on March 7, 2017.
- The 2025 Antarctic sea ice extent summer minimum on March 1 tied for the second lowest on record, at 1.98 million km² (764,000 million mi²). The all time record Antarctic summer low was 1.79 million km² (691,000 million mi²) reached on February 21, 2023. Polar ice satellite records have been continuous since 1979.
- Sea ice loss is expected to continue its slide based on climate models, with scientists warning that the Arctic landscape is likely to be transformed beyond recognition within decades. Sweeping changes will devastate Indigenous polar communities, disrupt Arctic ecosystems, and ultimately lead to the demise of iconic polar wildlife.
- Inhospitable polar conditions continue challenging scientists’ ability to gather data and make precise polar forecasts vital for knowing our climate future. But it may be even more challenging to raise public awareness and political will to reduce carbon emissions and reverse polar ice loss before it passes dangerous tipping points.

With climate change, cryosphere melt scales up as a threat to planetary health
- Earth’s cryosphere — comprised of ice sheets, glaciers, permafrost and snowfall — is in a rapid state of flux due to escalating climate change, with numerous studies underlining the grave risks posed by the thaw.
- Today, that worldwide meltdown poses new threats to human lives — endangering freshwater supplies and food security while increasing the risks of natural disasters and disease outbreaks. Cryosphere loss poses immense dangers to the environment, agriculture, economy and society according to a new report.
- If emissions continue unabated, these problems will only worsen. Scientists warn of compounding risks as cryosphere melt escalates, including sea level rise, the slowing of ocean currents, and the triggering of feedbacks that will add to climate change.
- 2025 is designated the International Year of Glaciers’ Preservation. Experts are calling for drastic cuts to carbon emissions because each fraction of a degree of warming avoided counts toward the preservation of the cryosphere along with the ecosystem services that ice, snow and permafrost provide.

Things are looking up for near-extinct Siberian cranes (cartoon)
The critically endangered Siberian Crane gets a bit of a breather, thanks to the securing of its stopover sites along the Russia-China migratory path, according to the International Crane Foundation. The crane population has doubled in a span of a decade. Read more about it here: Near-extinct Siberian crane is recovering thanks to habitat protection
January 2025 was warmest on record as climate change ‘overwhelms’ La Niña’s cooling
January 2025 was the warmest January on record, surpassing the previous record set by January 2024, according to satellite data from the EU’s Copernicus program. The findings were unexpected as ongoing La Niña conditions in the Pacific typically cool down global temperatures. The global average surface air temperature for the month reached 1.75° Celsius (3.15° […]
Researchers find microplastics for the first time in the Finnish Sámi waters
- Scientists and Indigenous Skolt Sámi knowledge holders have detected microplastics in the lakes and rivers that the Indigenous Sámi communities have used for generations.
- The concentration of microplastics was small, researchers found, but it was still higher than the quantity expected, given that the area is thought to be pristine.
- The average size of the microplastics was 100 micrometers and concentrations ranged from 45 to 423 microplastic particles per cubic meter.
- While the source of the microplastics is unknown, researchers say one of the sources could be from the transboundary pollution accumulated in fish that come from the ocean to the freshwaters for spawning.

Underwater volcano in Barents Sea reveals diverse marine life, study finds
What’s new: Following the discovery of the underwater Borealis Mud Volcano on the Arctic seabed in 2023, researchers have now confirmed that the methane-spewing volcano is home to a diverse array of marine life thriving in the unique habitat. What the study says: In 2023, scientists from UiT The Arctic University of Norway discovered the […]
The warming Arctic is now a carbon source, report finds
- A combination of increased microbial activity, thawing permafrost, and more frequent wildfires now means the Arctic is releasing more carbon dioxide than it’s storing, according to the 2024 Arctic Report Card.
- The temperature has also been rising; the past nine years have been the warmest on record in the Arctic.
- The changes have affected the region’s wildlife, with migratory tundra caribou populations declining by 65% over the past two to three decades.
- The report concludes that supporting Indigenous leadership, ways of life, and sustained climate action will be crucial for understanding and responding to rapid Arctic change.

Atlantic puffins are perilously attracted to artificial light
- When they make their first journey into the ocean, fledgling Atlantic puffins are prone to being stranded on land, imperiling them. For years, scientists have wondered what leads to these strandings.
- A new study provides experimental evidence to show that artificial light lures young puffins toward land, contributing to strandings.
- The study found pufflings don’t have a strong preference for any particular light source or color. However, once stranded, they move more under darkness and high-pressure sodium lights than under LED lights.
- Reducing artificial lights along the coast and offshore could save puffin lives, say conservationists, as Atlantic puffin populations are decreasing in parts of Europe. It can also save other threatened seabirds, such as Leach’s storm petrel found off Canada’s coast.

We need a North Pole Marine Reserve to secure a healthy future for Arctic waters (commentary)
- In 2024, the cod fishing moratorium on Newfoundland’s Grand Banks was lifted, 32 years after a historically significant ecological collapse of the fish’s population was caused by overfishing.
- The Central Arctic Ocean Fisheries Agreement signed in 2019 provides an example of how to address the threat from such overfishing by using the precautionary principle, international collaboration and science led evaluations of fish stocks.
- The future health of Arctic marine ecosystems can be secured by establishing a North Pole Marine Reserve, a new op-ed argues.
- This article is a commentary. The views expressed are those of the author, not necessarily Mongabay.

Colliding icebergs and chirping seals: Polar ocean sounds are reimagined in art-science collaboration
- The United Nations declared the 2020s the UN Decade of Ocean Science for Sustainable Development to highlight the need for public engagement, citizenship, and connection to harness positive change for the world’s seas.
- Art and science collaborations can make the hidden depths of the oceans come alive for people via creative pieces drawing from real marine research.
- Researchers in Germany and artists from around the world united to highlight the sounds of the polar oceans through art projects created with recordings from the Ocean Acoustics Group at the Alfred Wegener Institute.

Norway kills first round of Arctic deep-sea mining permits amid opposition
Norway has cancelled the first licensing round for deep-sea mining in the Arctic after pressure from activists and a small environmentalist political party. Plans to mine Norway’s seabed minerals were largely expected to sail through with little opposition, as the government eyed the start of commercial mining in 2030. But the country’s Socialist Left Party […]
Killer whales have found new homes in the Arctic Ocean, potentially reshaping marine ecology
- The vast ice sheets that historically kept killer whales out of the Arctic Ocean are melting as the region rapidly warms.
- Two small, genetically distinct groups of killer whales now live in the Arctic, after migrating from more southern regions of the Atlantic Ocean.
- Killer whales put pressure on the local ecosystem, including Arctic whales important to Indigenous groups.

Shorebird populations drop globally, some by a third: Report
Sixteen shorebird species have been reclassified to higher threat categories as the global population of migratory shorebirds across the world saw a substantial decline, according to the latest update to the IUCN Red List of Threatened Species. Conservation partnership BirdLife International, which helps examine the status of the world’s birds for the IUCN Red List, […]
Polar bears are suffering paw injuries likely driven by the warming Arctic: Study
What’s new At least two populations of polar bears in the high Arctic are developing paw injuries, possibly because of shifting sea ice conditions in a warming environment, according to a new study. Such injuries have not been reported in these areas previously, the study’s authors write. What the study says Between 2012 and 2022, […]
Climate change is turning Antarctica green, but not in a good way: study
What’s new: A recent study reveals that the icy Antarctic Peninsula, the northernmost part of mainland Antarctica, has experienced a nearly twelve-fold increase in plant cover over the last 35 years. The greening, driven primarily by the spread of mosses, has accelerated notably since 2016, researchers found. “The landscape is still almost entirely dominated by […]
Norway poised to sail past opposition with deep-sea mining licensing plans
- In June, Norway proposed 386 license areas in the Norwegian Sea for future deep-sea mining activities.
- During the ensuing three-month public consultation period, the government received more than 70 responses from various organizations and members of the public. The responses offered a mix of views: the majority opposed Norway’s deep-sea mining plans, a minority expressed support, and many across the board called for more research.
- One entity criticizing Norway’s plans is the country’s own environment agency, which argued that there’s a lack of knowledge to safely pursue deep-sea mining while protecting the marine environment.
- Norway’s government has stated that it intends to begin issuing licenses in 2025 with a view to starting seabed mineral exploitation in 2030.

Arctic sea ice hits summer minimum; Antarctic hovers at new winter lows
- The Antarctic winter sea ice maximum is on track to be the second lowest on record, at 17.15 million square km² (6.62 million mi²), close to the 2023 record low of 16.96 million km² (6.55 million mi²). Some scientists see this as anomalous. Others see it as a shift in the southern polar environment, maybe triggered by climate change.
- The Arctic summer sea ice minimum also stayed low this year, at 4.28 million km² (1.65 million mi²), making it the 7th lowest minimum in the satellite record. So far, 2012 saw the record minimum of 3.41 million km² (1.32 million mi²).
- Polar sea ice losses have global impacts. In one analysis, researchers estimated the planetary cooling effects of Arctic and Antarctic sea ice during 2016-2023 were about 20% and 12% less, respectively, than they were during 1980-1988, leading to almost 15% less cooling power for the planet.
- With about 12% declines of Arctic Ocean ice each decade, researchers predict a nearly ice-free Arctic summer by 2050, allowing more shipping through the Northwest Passage but threatening this unique polar ecosystem. Studies also show the Antarctic ice sheet to be increasingly at risk, particularly Western Antarctica.

Famous ‘spy’ beluga whale found dead in Norway
A beluga whale nicknamed Hvaldimir, who was initially suspected of being a Russian spy, was found dead on Aug. 31, according to Norwegian media. Hvaldimir’s body was first spotted by a father and son who were out fishing for mackerel near the port town of Risavika in southwestern Norway. “This morning, after receiving a sighting […]
Arctic melt ponds influence sea ice extent each summer — but how much?
- July marks the midpoint of the summer sea ice melt season, during which ice declines rapidly under the almost constant Arctic sun, and melt ponds form on ice floes. Scientists study melt ponds to better understand sea ice dynamics and to help forecast the annual sea ice minimum in September.
- Sea ice melt ponds absorb more solar energy than bare ice or snow but far less than open ocean, which complicates the story of summer sea ice melt. But in the past, scientists lacked the tools to accurately measure melt pond impacts.
- New remote sensing data look at sea ice from different satellite resolutions. High-resolution imaging sends a clear picture of melt ponds in a very small area, while low-resolution imaging produces a fuzzy picture of them across the entire Arctic.
- A combination of satellite data and on-the-ice observations now help scientists track the evolution of sea ice melt ponds and their influence on the overall decline of sea ice in the Arctic.

High-resolution maps reveal surprises about how ice shelves melt
- The first detailed maps from underneath an ice shelf in Antarctica have revealed previously unknown shapes and melting patterns.
- While researchers are yet to fully understand what causes the patterns in ice erosion, they say it indicates new information about how oceans are melting ice.
- The scientists involved in the study deployed an autonomous vehicle that traveled underneath the ice and used multibeam sonars to map the underside of the ice shelf.
- Ice shelves are floating masses of ice attached to land mass; while their melting doesn’t directly contribute to sea level rise, it can destabilize glaciers and cause them to flow faster.

Animal apocalypse: Deadly bird flu infects hundreds of species pole-to-pole
- The world is currently seeing the fastest-spreading, largest-ever outbreak of H5N1, a highly contagious, deadly strain of avian influenza. Scientists say this virus now presents an existential threat to the world’s biodiversity, with the risk to humans rising as it continues to leap the species barrier, reaching new host species.
- H5N1 has already impacted at least 485 bird species and 48 mammal species, killing seals, sea otters, dolphins, foxes, California condors, albatrosses, bald eagles, cougars, polar bears and a zoo tiger. Since it broke out in Europe in 2020, this virus has spread globally. Carried by birds along migratory pathways, it has invaded six continents, including Antarctica.
- This current H5N1 animal pandemic (or panzootic) was caused by humans: A mild form of avian flu carried by wild birds turned deadly when it infected domestic poultry. Many industrial-scale poultry farms adjoin wetlands where migrating birds congregate, facilitating rapid spread.
- The toll on some bird and mammal populations has been devastating. With continued outbreaks, some imperiled species could be pushed to the brink, with wildlife already fighting to survive against a changing climate, disappearing habitat and other stressors.

Warming is not helping smoother navigation through the Arctic
Over the last 50 years, the Arctic has been warming four times faster than any other place on Earth, causing rapid melting of sea ice. For shipping and trade, this lack of Arctic sea ice could mean a much shorter trade route between the Atlantic and Pacific oceans. Without it ships must go out of […]
Anti-whaling activist Paul Watson arrested in Greenland
Prominent environmental activist Paul Watson has been arrested in Greenland, reportedly for his past interventions against Japanese whalers, according to a statement from his foundation. Watson, a Canadian-U.S. dual national, is the founder of Sea Shepherd, a U.S.-based nonprofit, marine conservation activist organization, and has been involved in several anti-whaling and anti-sealing protests in the […]
How Europe’s only Indigenous group is inspiring a greener Christianity
- The Sámi are Europe’s only recognized Indigenous group, having hunted, fished and herded reindeer across Arctic Europe for millennia before the arrival of Christianity.
- Today, the Sámi are fighting across their territories to resist mining, logging and energy projects that disrupt traditional activities.
- Sámi thinkers and religious leaders are pushing Scandinavia’s national churches to become allies in their fight for self-determination.
- These churches are increasingly interested in better understanding Indigenous Christian theology like that of the Sámi, which may present an alternative to a traditionally anthropocentric worldview. Some churches and followers, however, are not convinced.

Indigenous Alaskans drive research in a melting arctic
- In Utqiagvik, Alaska, the Iñupiat rely on whaling and subsistence hunting for the bulk of their diet, a practice dating back thousands of years.
- Powered by mineral wealth, the Iñupiat-run North Slope Borough Department of Wildlife Management employs a collaborative team of scientists and hunters.
- Though the arctic is warming nearly four times faster than the global average, the Iñupiat are confident in their ability to adapt their practices to changing conditions.
- The Department of Wildlife Management provides a potential model for collaborations between Indigenous peoples and western researchers — with Indigenous leaders in charge of funding and resource allocation.

Alaska’s Arctic rivers turn rusty orange as permafrost thaws
- Numerous rivers and streams in Alaska’s remote Brooks Range are turning orange due to the thawing of permafrost, which is releasing previously frozen minerals into the water.
- Water samples from the affected streams show higher acidity and higher concentrations of sulfates and trace metals, which can have significant ecological consequences, such as the disappearance of fish species and a decline in aquatic insect diversity.
- These water quality changes could severely impact Arctic fish populations, as many of the affected streams serve as crucial spawning grounds and nurseries for salmon and other fish species that are essential to the ecosystem and local subsistence fisheries.
- Researchers emphasize the need for further studies to understand the long-term implications of this issue, highlighting that the abrupt changes in water chemistry observed in the Brooks Range are a unique and concerning consequence of climate change in the Arctic.

Polar warning: Warming temperatures mean more than melted ice
- The Arctic and Antarctic are changing rapidly in response to global warming, with scientists striving to understand how escalating impacts on these unique regions impact the rest of the world. This story summarizes three significant recent studies.
- A new comprehensive greenhouse gas budget for Arctic terrestrial ecosystems estimates that the permafrost-covered region now emits more greenhouse gases — including carbon dioxide (CO₂), methane (CH₄) and nitrous oxide (N₂O) — than it stores. That trend is expected to accelerate if Arctic warming worsens further.
- Another recent study looked at the ice shelves edging the Antarctic continent, which act as brakes slowing the flow of glacial ice into the ocean that adds to sea-level rise. Although many factors impact the mass and stability of these shelves, a new model shows El Niño warming events help melt ice from below to increase shelf loss.
- Scientists also analyzed a record-breaking heat wave hitting Antarctica in March 2022, when temperatures soared by up to 40°C (72°F) above normal. They determined that this “black swan” event is having long-term impacts on the region’s ecosystems. The odds are that more such high-heat events will occur in future.

Report ranks 60+ ideas, including geoengineering, to save the Arctic
- Given that the serious impacts of climate change are rapidly escalating, some scientists, backed up increasingly by governments, are looking into extreme measures such as geoengineering to slow the rate of change.
- A new report examines 61 climate mitigation ideas for the Arctic, including geoengineering.
- The report ranked tried and true measures, like restoring peatlands, the highest, but some geoengineering ideas, such as solar geoengineering, also ranked high.
- Researchers say, however, that while geoengineering ideas may be worth studying, the goal right now must be to aggressively cut emissions. Some also fear that geoengineering will become a costly distraction, diverting attention from the need for fossil fuel companies to cut production, and for decarbonization of the economy.

Plastic pollution talks end & Arctic peoples return home to a ‘sink’ of plastic
- In the wake of the plastics treaty talks in Ottawa, a new report highlights the severe impacts of plastics and petrochemicals on Arctic Indigenous communities.
- Indigenous delegates were left with bittersweet feelings that negotiations did not lead to commitments to cut plastic production, while oil companies and producing countries say more recycling is the answer.
- The Arctic is a hemispheric sink collecting plastic pollution from all corners of the world and is melting four times faster than the rest of the world.
- Indigenous communities in Alaska are among those who bear the brunt of climate change and plastic pollution, with studies finding toxic chemicals in peoples’ blood, breast milk and placentas, and melting ice impacting hunting and food security.

Freeze on Russian collaboration disrupts urgently needed permafrost data flow
- Accelerating Arctic warming threatens to thaw more and more carbon-rich permafrost and release vast amounts of greenhouse gases into the Earth’s atmosphere, but scientists don’t know when such a tipping point event might occur.
- The potential for large and abrupt permafrost emissions adds urgency to better understanding the factors that could turn permafrost from a carbon sink into a carbon source.
- However, more than half of all Arctic permafrost lies under Russian soil, and a two-year freeze on collaborations between Russian scientists and the international scientific community — prompted by the Russian invasion of Ukraine on Feb. 24, 2022 — is disrupting data flows and hamstringing the polar research community.
- Despite an uncertain geopolitical landscape, scientists are determined to close the data gap with work-arounds such as pivoting to “proxy” field sites, ramping up remote sensing with AI, and mining archived data for new insights. But reintegrating Russian research with other Arctic research is a priority of the scientific community.

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