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Experts identify victims from one of history's most 'catastrophic' Arctic disasters
Around 180 years after Sir John Franklin's doomed expedition to find the Northwest Passage ended in disaster, researchers have identified four additional crew members through DNA analysis. The new research, shedding light on one of history's most infamous Arctic tragedies, was led by researchers at the University of Waterloo in Ontario, Canada. The identified remains include William Orren, Able Seaman; David Young, Boy 1st Class; John Bridgens, Subordinate Officers' Steward; and Harry...
Could Russia hit northern Europe if it gained control of Arctic’s Bear Gap?
Could Russia hit northern Europe if it gained control of Arctic’s Bear Gap? Norwegian defence minister warns Russia could pose a grave risk and must not be allowed to control the corridor. A strategically important stretch of Arctic Ocean, known as the Bear Gap, has become the latest focus of concerns about Russia’s military ambitions in the far north.
Rocks falling from melting icebergs host deep-sea oases of biodiversity
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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...
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.
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.
Warming boosts natural methane emissions as microbes fail to keep pace
Warming boosts natural methane emissions as microbes fail to keep pace Sadie Harley Scientific Editor Robert Egan Associate Editor A new study led by Professor Mark Trimmer of Queen Mary University of London, published in the journal Nature Climate Change, explains how increases in natural methane emissions will be maximized under future climate warming. Say "methane" and most people think of cows, yet nearly half of all methane is produced by microbes in the natural world, especially lakes,...
Mysterious ‘cold blob’ in the Atlantic suggests the AMOC is weakening
Over the past 150 years, Earth’s entire surface has been warming, except for one patch of the north Atlantic. Located south-east of Greenland, this area has cooled by as much as 1°C and is known as the “warming hole” or the “cold blob”. Scientists have been split over why this cold blob exists, but the latest evidence backs up the idea that it is caused by a weakening of the Atlantic Meridional Overturning Circulation (AMOC), the system of currents that transports warmth from the tropics to...
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.
Arctic river deltas face rising climate pressure while holding vast frozen carbon reserves
Arctic river deltas face rising climate pressure while holding vast frozen carbon reserves Gaby Clark Scientific Editor Robert Egan Associate Editor Many rivers flow into the Arctic Ocean north of the Arctic Circle—including the Lena in Siberia and the Mackenzie River in Canada. The deltas of these large and small rivers store large amounts of carbon, which is bound there in frozen soils and sediments.