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Multiscale Decomposition Reveals Predictable Interannual Variability and Climate Trends in Antarctic Sea Ice Loss
Announce Type: replace Abstract: Antarctic sea ice has undergone unprecedented changes in recent years, raising questions about how this key geophysical system is responding to climate change. Decades of slow expansion were replaced by a precipitous decline in 2014-2017, a subsequent apparent recovery, and a renewed collapse from 2022 to the present. We diagnosed sea ice concentration (SIC) from satellite observations with a hierarchical decomposition method based on Dynamic Mode...
How waves, ponds and green algae are accelerating sea ice melt in Antarctica
How waves, ponds and green algae are accelerating sea ice melt in Antarctica Lisa Lock Scientific Editor Andrew Zinin Lead Editor Picture sea ice in your mind. You probably imagine brilliant white, snow-covered floes floating on the surface of the ocean, home to penguins in the south of the globe or polar bears in the north. But our new research shows Antarctic sea ice can turn into rafts of rotting floes (the free-floating pieces of ice) or an icy green slush when it interacts with waves in...
The 'Doomsday Glacier' is poised to lose its ice shelf this year. An Antarctic researcher explains what that means for global sea levels
Thwaites Glacier is the largest glacier in West Antarctica, pictured here by the Copernicus Sentinel-2 mission in 2019.
UN warns of 'deepening crisis' in oceans, urges action
UN warns of 'deepening crisis' in oceans, urges action Andrew Zinin Lead Editor Oceans are in a "deepening crisis" that demands urgent global action, a major U.N. report warned Monday, with seas warming and rising faster, ice cover shrinking, and marine ecosystems under mounting strain. The culmination of five years of work by 600 international scientists, the 1,352-page tome details the growing toll of climate change, pollution and overfishing in our oceans, which cover more than 70% of the...
Hidden meltwater found deep in Antarctic coastal waters reveals stronger climate impacts
June 5, 2026 feature Hidden meltwater found deep in Antarctic coastal waters reveals stronger climate impacts Hannah Bird Author Gaby Clark Scientific Editor Robert Egan Associate Editor Freshwater from melting Antarctic glaciers may be influencing the Southern Ocean in ways scientists have largely overlooked. New research, published in Frontiers in Marine Science, has found that glacial meltwater is not confined to the ocean's surface, as previously assumed, but can also be detected much...
What is a Fata Morgana? Sea mirage sparks queries
What is a Fata Morgana? Sea mirage sparks queries An image showing a rare mirage off the coast of Cornwall has led to speculation on social media about exactly what it is. Mike Hancock, from boat trip operator St Ives Boats, recently spotted it off the north coast and said the "surreal" experience looked like a "huge bear on the horizon".
New tech enables scientists to see emperor penguins in darkness
New tech enables scientists to see emperor penguins in darkness Sadie Harley Scientific Editor Andrew Zinin Lead Editor Research led by Professor Michelle LaRue from the School of Earth and Environment at Te Whare Wānanga o Waitaha | University of Canterbury (UC) published in Remote Sensing in Ecology and Conservation shows that high-resolution Synthetic Aperture Radar (SAR) imagery can track emperor penguins through the Antarctic winter, opening a new way to monitor an endangered species...
Expedition to Antarctica advances research on potential melanoma treatment
Expedition to Antarctica advances research on potential melanoma treatment Lisa Lock Scientific Editor Andrew Zinin Lead Editor Deep beneath the icy waters surrounding Antarctica, a small marine organism may hold clues to a future cancer treatment. Researchers from USF recently returned from a six-week expedition in one of the most remote environments on Earth to study a species of ascidian, or sea squirt, that contains a bacterium capable of killing melanoma cancer cells. The discovery was...
Geoengineering can thicken Arctic sea ice, but for how long?
Each winter, Canada builds more than 7000 kilometres of ice roads, in part by drilling holes in lake ice and pumping water onto the surface, where it freezes and thickens the ice for massive vehicles, as seen in the TV series Ice Road Truckers. If we did the same thing on top of Arctic sea ice, could we thicken it enough to stop it from disappearing? That’s the question tested by geoengineering researchers in field trials in Canada and Norway in 2024 and 2025.
Tugboat? Pipeline? Why there's no quick fuel fix for the Nuyina
RSV Nuyina can't access Hobart's marine refuelling depot, so what are its other options? Fri 5 Jun 2026 at 5:18am When the Australian government decided to spend $528 million on a state-of-the-art icebreaker, it was envisaged the ship would be able to refuel in its home port of Hobart. But in 2023, the harbourmaster rejected an application for the RSV Nuyina to travel under the Tasman Bridge to reach city's marine fuel depot.