Scientists at British Antarctic Survey have identified a new tipping point in Antarctic ice sheet melting due to ocean water intrusion. This process, currently not included in models, could lead to significant underestimates of sea level rise and accelerated ice sheet melting.
A recent study using large climate models found that record-breaking low Antarctic sea ice in 2023 was extremely unlikely without climate change. The research suggests strong climate change made the event four times more likely, with implications for local and global weather patterns.
The West Antarctic Ice Sheet is projected to melt at an increased rate, even under ambitious climate targets. Sea levels may rise by up to five meters, impacting millions of people living near the coast. The study's findings highlight the need for continued efforts to reduce greenhouse gas emissions and adapt to sea-level rise.
A recent study found that Antarctic fur seal populations have declined by 7% each year since peaking in 2009, with krill numbers crashing in the last decade. The research suggests that rising sea temperatures may be the primary cause of the decline.
Research reveals the grounding line of the Ronne Ice Shelf can shift up to 15 km with changing tides, controlling ice stability and potentially accelerating ice melt. This finding highlights the need for improved observations and modeling of tidal processes to predict Antarctica's response to climate change.
Researchers find catastrophic breeding failure for emperor penguins due to Antarctic sea ice loss. The study indicates that over 90% of emperor penguin colonies will be quasi-extinct by the end of this century, based on current global warming trends.
High-energy electrons pose significant radiation damage to satellites; a new study sets benchmark levels for extreme space weather events. Satellite operators must prepare against these risks as the global space economy relies on over 5,465 operational satellites.
Researchers have created a detailed map of the geology beneath Thwaites Glacier in West Antarctica, showing that only about a fifth of the ground is sedimentary rock. This finding could affect how the glacier behaves as it retreats due to climate change, with potential implications for ice flow and loss from other glaciers.
New data from the MELT project reveal that Thwaites Glacier's melting is not uniform, with cracks and crevasses experiencing faster melting rates. This suggests that even small amounts of melting can push the glacier out of balance, contributing to its rapid retreat.
New research from British Antarctic Survey predicts climate change will extend the lifetime of space debris and elevate the risk of collisions between satellites, due to reduced atmospheric density. The study's findings highlight the need for action to control space pollution and ensure the upper atmosphere remains usable in the future.
New research suggests that the first animals on Earth could have evolved earlier than previously thought. Polar marine creatures' survival strategies might hold clues to understanding this phenomenon. The study examines the evolution of life in extreme cold and icy periods, with implications for our understanding of animal origins.
A new study found that ancient ice age valleys in the North Sea formed rapidly, within hundreds of years, and transported vast amounts of meltwater away from under the ice. This process has implications for how glaciers may respond to climate warming today.
A new study provides evidence that long-term warming of the Amundsen Sea, a key contributor to global sea level rise, is linked to rising greenhouse gases. The research suggests that ocean temperatures in the region have been rising since before records began and are expected to continue if greenhouse gas emissions increase.
A recent study has uncovered an extraordinary abundance of marine life beneath the Antarctic ice shelf, defying expectations. The discovery of 77 species, including bryozoans and serpulid worms, reveals a thriving ecosystem that has existed for nearly 6,000 years.
Scientists have imaged fine-scale landforms within ancient glacial channels in the North Sea, revealing how water moved through the channels and even how ice stagnated and melted away. The findings provide clues to how ice sheets react to a warming climate and offer insights into future changes in ice sheet behavior.
A new AI tool called IceNet has been developed to predict Arctic sea ice conditions with high accuracy. The system is almost 95% accurate in forecasting sea ice presence two months ahead, addressing the challenge of predicting Arctic sea ice forecasts for decades.
Researchers use geological records to recreate the history of Larsen C Ice Shelf, finding that it has remained stable for the past 10,000 years. Despite this, the team warns that warmer ocean currents and atmospheric temperatures could lead to future collapse.
Researchers recreated a 700-year record of Southern Hemisphere westerly winds using sediment cores. The study found that winds intensified and migrated poleward during warm periods, which is likely to continue with climate warming.
After being wiped out by whaling, blue whales have made a comeback to South Georgia, with 58 sightings reported in a 2020 survey and numerous acoustic detections. The discovery is key evidence in learning how the species is recovering following a ban on commercial whaling.
Researchers have discovered deep seabed channels beneath Thwaites Glacier in West Antarctica that may be the pathway for warm ocean water to melt the underside of the ice. The findings suggest that these channels could play a critical role in contributing to future global sea level rise.
Researchers used a high-resolution climate model to compare Arctic sea ice conditions during the last interglacial with present-day data. The findings suggest that intense springtime sunshine led to the formation of melt ponds, which contributed to sea ice melt.
A new study reveals nearly 20% more emperor penguin colonies in Antarctica, totaling 61 colonies worldwide. The discovery uses satellite images to locate the birds, which are vulnerable to climate change and loss of sea ice breeding habitat.
Researchers found most southern right whales visiting South Georgia breed in South America, contrary to previous suspicion. This discovery will help track population recovery and inform conservation strategies.
Researchers have found an increase in marine debris collected on beaches of Bird Island and Signy Island, with most items being plastic. Scientists also discovered that fishing vessels contribute significantly to plastic pollution, threatening seabirds and other wildlife in the region.
A new study identifies 13 non-native species most likely to invade Antarctica's Antarctic Peninsula region over the next decade. The invasion could have devastating effects on fragile polar biological communities and ecosystems. Comprehensive biosecurity checks are crucial to prevent invasive species from reaching Antarctica.
Researchers develop method to count whales from space, revolutionizing stranding detection in remote areas. The technique provides early insight into whale mortality, enabling rapid response and conservation efforts.
A new study recommends that emperor penguin populations be listed as 'vulnerable' due to projected sea ice loss and rising temperatures. The researchers advocate for improved climate change forecasting and enhanced protection measures to safeguard the species.
A new study reveals that Antarctic marine life took over 320,000 years to recover after the mass extinction event that wiped out the dinosaurs. It wasn't until up to one million years later that the number of species on the sea floor returned to pre-extinction levels.
A new study reveals that Asia's high mountain glaciers provide a significant buffer against drought, supplying water to major river basins during dry seasons. The glaciers release 36 cubic kilometres of meltwater annually, equivalent to the annual municipal and industrial needs of several countries.
A new study reveals that ship traffic in Antarctic waters has increased up to 10-fold since the 1960s, posing a risk of invasive species altering the balance between species. The research informs future conservation management and policy for protecting Antarctica's unique biodiversity.
Researchers found a three-year breeding failure at Halley Bay colony due to unstable sea-ice conditions. The local population has largely disappeared, while nearby Dawson Lambton colony has increased in size as birds seek better breeding grounds.
A new study reveals that a small number of intense storms around Antarctica control up to 60% of annual snowfall in some places. These extreme events are responsible for the marked differences in snowfall from year to year, with one event accounting for 44% of annual snowfall.
A new study links sea ice loss in the Arctic to major climate events, including rapid warming of 16 degrees Celsius in Greenland. The research, published in PNAS, used ice cores and numerical model simulations to determine that sea ice changes played a critical role in past abrupt climate change events.
A recent study found that Antarctic krill populations have shifted southward due to warming in their key habitat, posing major implications for the food web and biogeochemical cycling. The team analyzed data from scientific surveys spanning nearly a century and found a substantial change in the krill population over time.
A team of scientists has found a new way to explain the formation of Saturn's radiation belts, which challenges current theories on electron acceleration. They suggest that Z-mode waves are responsible for energizing electrons in the belt, rather than radial diffusion.
Scientists have used satellite gravity data from the GOCE mission to image the structure of the Earth's lithosphere, revealing large-scale tectonic features and complex patterns in ancient cratons. These findings improve our understanding of Antarctica's deep structure and its connection to the rest of the planet.
Researchers have successfully detected and described four whale species using detailed satellite imagery, providing a cost-effective method for monitoring population changes and behavior. The study identifies key inaccessible whale populations that can benefit from satellite-based tracking.
A new study reveals a significant increase in plastic waste reaching remote South Atlantic islands, with over 90% of beach debris being plastic. The researchers found high concentrations of plastic on beaches and up to 300 items per meter of shoreline, approaching levels seen in industrialized North Atlantic coasts.
A new UK-US study found that electron radiation levels within the Van Allen radiation belts can remain exceptionally high for 5 days or more after a solar wind event. This increases the risk of damage to satellites' electronic components, potentially leading to malfunctions and service outages.
Researchers studying ocean temperatures in West Antarctica found a complex cycle of warming and cooling that affects ice shelf melting rates. The findings suggest that changes in deep ocean temperatures can lead to significant variations in ice sheet melting, with potential implications for global sea-level rise.
A new study of lake sediments reveals that increased westerly winds are likely to reduce the Southern Ocean's ability to absorb carbon dioxide from the atmosphere. This could accelerate climate change as the Southern Ocean currently absorbs over 40% of human-produced carbon dioxide.
A new study from British Antarctic Survey (BAS) provides insights into the secret life of leopard seals, tracking their migration patterns between Antarctica's sea ice and sub-Antarctic islands. The research reveals that these apex predators spend up to one-third of their time out of the water, with behavior changes throughout the year.
A new study of marine fossils from Antarctica, Australia, New Zealand and South America reveals that sea lilies remained in shallow waters until around 33 million years ago. The results provide conclusive evidence that this change happened at different times in different parts of the globe.
A new study suggests that wind could be a more significant source of energy generation due to increased winds in the UK and northern Europe. The research predicts a 10% increase in onshore wind energy generation, enough to power an additional 700,000 homes per year.
A team of researchers is conducting a five-week survey to investigate the health of southern right whales in their feeding grounds off South Georgia. The study aims to unravel the mystery of high calf mortalities and understand how environmental conditions influence breeding success.
A new study found that albatross populations have halved over the last 35 years on Bird Island due to environmental change and deaths in longline and trawl fisheries. Climate change and bycatch were found to be major contributors to this decline, with grey-headed albatrosses being particularly affected.
A new study predicts that 79% of species native to the region will lose out due to warming, with more animals losing suitable habitat than gaining it. The average warming of 0.4 degrees predicted by 2099 will cause unique local species to change their distribution.
The UK will build a cutting-edge space weather radar in the Arctic, providing unprecedented detail to understand space weather's effects on technology and society. The EISCAT_3D radar will measure the upper atmosphere and near-Earth space, helping scientists better comprehend the connections between Earth's magnetic field and atmosphere.
A new study published in Nature reveals that the West Antarctic Ice Sheet has experienced significant and sustained ice loss over the past 11,000 years, driven by wind-driven incursions of warm water. The research provides crucial insights into the mechanisms behind this ice sheet's behavior and its contribution to sea-level rise.
A new atlas presents the most comprehensive high-resolution imagery of the Polar Regions seafloor, showcasing thousands of square kilometers of geological phenomena. The atlas enables researchers to study past glaciers and ice sheets, gaining insights into climate change and Earth's history.