The Arctic

The Arctic region of the Earth is defined roughly as the area above 66 degrees north latitude and is largely a vast ocean covered by sea-ice, though that ice is being affected by global warming. The Arctic also includes much of Greenland, which is covered by a massive ice sheet, as well as the frozen tundra of Europe, Asia and North America. It has distinctive plants and animals found only there, such as the polar bear and the Arctic fox. Read below for the latest news and research from and on the Arctic, its ice and the life it supports.
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Snowy Owls' NYC Visit Reveals Migration Habits
March 11th, 2015
At least seven snowy owls have been spotted in New York City since December, and scientists are reaping the benefits. By tagging the owls, researchers have learned surprising things about the birds' feeding habits and ecology.
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New Lakes Discovered Under Greenland's Ice Hint at Warming
Greenland lake crater
January 21st, 2015
The discovery of two lakes hidden beneath the Greenland ice suggests that climate change cuts to the bottom of the ice sheet.
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How Greenland Got Its Glaciers
Greenland Mountains
January 8th, 2015
Greenland is famous for its massive glaciers, but the region was relatively free of ice until about 2.7 million years ago, according to a new study. Before then, the Northern Hemisphere had been mostly ice-free for more than 500 million years.
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Arctic Sea Ice 'Thinning Dramatically,' Study Finds
Arctic Ice
March 4th, 2015
Arctic sea ice — the ice that freezes and floats on Arctic waters — is thinning at a steadier and faster rate than researchers previously thought, a new study finds.
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Melting Glaciers Pose a Carbon Menace
Tibet glacier
January 21st, 2015
Melting glaciers pose another threat beyond sea level rise. They will dump massive amounts of organic carbon into the world's oceans, altering ecosystems.
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Fate of Earth’s Ice Comes Further Into Focus
Antarctica's Twaites Glacier, climate change, ice melt
December 29th, 2014
The melting of Earth's polar ice came into starker relief in 2014, with real implications for sea level rise.
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Greenland's Ice-Melt Models May Be Too Sunny
Jakobshavn ice bergs
December 16th, 2014
The vast ice sheet covering Greenland could melt more quickly in the future than existing models predict, new research suggests.
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Greenland's Hidden Ice Layers Revealed in New Map
Greenland 3D map
January 30th, 2015
Layer by layer, scientists have filled in the hidden expanse of Greenland's vast ice sheet, revealing where the island hides its oldest ice.
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Will Warming Surge as Arctic Microbes Feast on Defrosting Carbon?
Eriophorum root, carbon, global warming
January 13th, 2015
Scientists are racing against climate change to determine the impact of thawing Arctic soils and the carbon released during that process.
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Greenland's Ice Loss Now Comes from Surface
Greenland Melt Ponds
December 22nd, 2014
Greenland's disappearing ice shifted gears in the past decade, switching from shrinking glaciers to surface melting, researchers reported at the American Geophysical Union's annual meeting.
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