It’s just past the end of the long Arctic winter, when sea ice reaches its maximum extent before the long period of daylight slowly melts the ice away over the next six months. We carefully measure ...

A sweeping new study reveals that as Arctic permafrost thaws, it is dramatically reshaping rivers and releasing vast amounts ...

The Arctic sea ice maximum this year effectively tied for the lowest ever on record, with major implications for polar ...

The shell of ice that expands atop the Arctic Ocean every winter has done all the growing it will do this season—and that ...

While snowmelt is a major contributor to river flow, thawing permafrost is becoming increasingly important. Beneath the ...

Permafrost sounds permanent, but there’s a catch: the top portion, called the active layer, freezes and thaws every year. In ...

Add Yahoo as a preferred source to see more of our stories on Google. Measurements were taken at 13 different locations in the Arctic Ocean. (CREDIT: Lisa W. von Friesen) The Arctic Ocean, once locked ...

For the second consecutive year, winter sea ice in the Arctic reached a level that matches the lowest peak observed since ...

New research led by scientists at UC San Diego's Scripps Institution of Oceanography finds that the travel time of underwater ...

Climate change and the associated rising temperatures are melting more and more frozen ground in the Arctic. This dissolved matter contains large amounts of organic carbon which is flowing into the ...

The Arctic Ocean, once locked in a vault of thick, old ice, now is transforming at lightspeed. Temperatures there are increasing at up to four times the rate of the planet overall, melting sea ice ...