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.
Read More
Hunting on Land Can't Help a Hungry Polar Bear
polar bear
April 1st, 2015
Even though some polar bears are hunting on land more often in areas hit by shrinking Arctic sea ice, a diet of bird eggs and berries can't sustain these huge animals, a new study finds.
Read More »
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.
Read More »
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.
Read More »
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.
Read More »
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.
Read More »
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.
Read More »
Arctic Is Heating Up Twice as Quickly as Rest of World
A graph showing Arctic temperature increases
December 17th, 2014
Bad news for polar bears: the Arctic is still warming at twice the pace as the rest of the planet, according to a new federal report.
Read More »
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.
Read More »
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.
Read More »
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.
Read More »