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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.
Sea ice loss in the Arctic has triggered a critical tipping point that's destroying the food chain
Sea ice loss in the Arctic has triggered a critical tipping point that's destroying the food chain Researchers say the Arctic Ocean crossed a biological tipping point in 2009, when nitrate levels in the water suddenly started dropping due to a drastic reduction in sea ice extent. The Arctic Ocean has crossed a tipping point that is wreaking havoc on the region's food chain, with potentially dire consequences for commercial fishing and the ocean's capacity to soak up carbon, a new study...
Amplified Arctic iceberg traffic reshapes benthic biodiversity
Abstract The Arctic is undergoing rapid warming, resulting in retreating sea ice and glaciers1, yet how cryospheric changes propagate into the deep ocean remains poorly understood2. Here we identify a climate-driven mechanism linking accelerating glacier disintegration to an increase in deep-sea hard-bottom habitats far beyond calving fronts. Seafloor observations in Fram Strait show a localized increase in the density and patchiness of dropstones delivered by debris-laden icebergs.
Centuries‑old logbooks reveal how bowhead whales are recovering from near extinction
Centuries‑old logbooks reveal how bowhead whales are recovering from near extinction Gaby Clark Scientific Editor Andrew Zinin Lead Editor Bowhead whales have the greatest life span of any mammal on Earth. They can reach over 200 years in age thanks in part to their slow metabolism and cancer-suppressing genes. They are far stockier and shorter than other large baleen whales, making them perfectly adapted to life among Arctic sea ice.
Melting of Greenland ice sheet could release methane 'fire ice'
Seismic surveys and sediment cores suggest that dozens of deep pockmarks on the sea floor were created when Arctic methane stores were disrupted by climate change after the last glacial maximum – and scientists warn it could happen again
North Atlantic spring storms have grown more common since 1940, analysis reveals
North Atlantic spring storms have grown more common since 1940, analysis reveals Sadie Harley Scientific Editor Andrew Zinin Lead Editor Storm Dave, which swept across northern Europe over the Easter weekend, is an example of what new research from the University of Gothenburg has revealed. Spring storms forming over the North Atlantic have become more common than they were 80 years ago, and this is due to climate change. In the Northern Hemisphere, storm seasons follow a seasonal cycle.
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...
Rocks falling from melting icebergs host deep-sea oases of biodiversity
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Beluga whales keep switching mates and it may be saving their species
Beluga whales keep switching mates and it may be saving their species Beluga whales may be beating the odds against inbreeding by constantly changing partners over their decades-long lives. Date: - June 4, 2026 - Source: - Frontiers - Summary: - Hidden beneath Arctic waters, beluga whales have long kept their family lives a mystery. By analyzing DNA from more than 600 belugas in Alaska’s Bristol Bay over 13 years, researchers uncovered a surprisingly flexible mating system: both males and...
All hands on deck: the EU's €92 million bid for a global ocean intelligence network
The European Commission's ocean observation initiative shifts from passive marine research to an active policing framework designed to project Western power and protect critical infrastructure. The European Commission announced on Wednesday a sweeping €92 million maritime initiative aimed at positioning the European Union as the global superpower in ocean patrolling and intelligence, citing "malicious actors" increasingly exploiting grey-zone tactics. The ocean covers 70% of the planet's...