Arctic

Satellites show Arctic sea ice is melting even faster than scientists realized

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A new study based on NASA and ESA satellite data shows that Arctic sea ice is thinning at a “frightening rate.” Measuring the ice via satellites each month from 2018 to 2021, polar scientists Sahra Kacimi of the California Institute of Technology’s Jet Propulsion Laboratory and Ron Kwok of the University of Washington’s Applied Physics … Read more

Arctic Ice Already Thinning at a ‘Frightening Rate’, Satellites Reveal

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New satellite data has revealed the Arctic is melting at a “frightening rate” due to the excess heat caused by human greenhouse gas emissions.  End-of-season Arctic multiyear sea ice – the ice that persists over several years – was roughly 50 centimeters (1.6 feet) thinner in 2021 than it was in 2019, the figures show, … Read more

Russia’s War in Ukraine Sends Tremors into the Arctic

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Diplomatic tensions over Russia’s invasion of Ukraine are affecting the farthest reaches of the Northern Hemisphere. Seven of the Arctic Council’s eight members — all except Russia, which currently holds the council’s rotating chairmanship — have agreed to boycott future meetings. The boycott, announced earlier this month by the U.S., Canada, Denmark, Finland, Iceland, Norway … Read more

‘It looks like Iron Curtain 2.’ Arctic research with Russia curtailed after Ukraine invasion | Science

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This year, polar bears will cross from Alaska to Siberia as they do every spring, plodding across the frozen Chukchi Sea to their summer home on Russia’s Wrangel Island. But this time, U.S. scientists won’t be following them. “There’s no way,” says Eric Regehr, a University of Washington (UW), Seattle, polar bear biologist who was … Read more

Arctic Sponges Survive Dark, Hostile Conditions by Feasting on The Extinct

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The bottom of the Arctic Ocean, below the permanent sea ice, is not a friendly place for life. Down there in the cold dark, nutrients and vegetation are sparse; it’s expected that any life that does manage to eke out an existence under these conditions would be likewise thin on the ground.   Scientists were … Read more

Surprise Fossil-Munching Sponges Found in Arctic Seafloor Wasteland

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Entombed below a thick layer of sea ice year-round and nearly devoid of nutrients, the central Arctic Ocean is a frigid wasteland where few creatures are capable of surviving. That is why researchers at Germany’s Alfred Wegener Institute (AWI) and their colleagues were so surprised to spot a thriving community of velvety deep-sea sponges below … Read more

Arctic Krill Track Day and Night Even in Polar Darkness

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During Arctic winter, the sun disappears below the horizon for long weeks of “polar night.” But new research shows that tiny crustaceans in the Arctic Ocean somehow maintain their daily rhythms during these extended periods of darkness. Most living creatures use sunlight to time their biological processes and behaviors. This becomes a challenge when there … Read more

Arctic ‘ring of fire’ solar eclipse of 2021 changed southern auroras. Here’s how.

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A solar eclipse on one side of Earth stimulated aurora displays on the opposite side of our planet, according to a new study. The “ring of fire” or annular solar eclipse of June 10, 2021, passed over sparsely-populated regions near and within the Arctic Circle in Canada, Greenland and Russia, and appeared as a partial … Read more

Arctic hare hops the distance from Washington, D.C., to New York City | Science

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Thawing Permafrost Is Poised to Unleash Havoc in The Arctic, Scientists Warn

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Thawing Arctic permafrost laden with billions of tonnes of greenhouse gases not only threatens the region’s critical infrastructure but life across the planet, according to a comprehensive scientific review.   Nearly 70 percent of the roads, pipelines, cities, and industry – mostly in Russia – built on the region’s softening ground are highly vulnerable to … Read more