Purposefully sinking boreal trees could help lock away carbon for millennia or longer, but the audacious plan comes with ...

Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, atmospheric patterns, and extreme weather conditions, even outside the Arctic ...

For most of their evolutionary history, narwhals have relied more on sound than sight to survive in the Arctic’s dark icy ...

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 ...

A year-long experiment yields acoustic measurements carrying information about temperature and ice in the Arctic Ocean.

Greenland’s vast ice sheet is not just shrinking, it is rearranging the physics of the oceans around it. As the ice melts and ...

In 2006, scientists released the first version of the Arctic Report Card, now a staple at the Fall Meeting of the American ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

A conveyor belt of ocean water that loops the planet and regulates global temperatures could be heading for a tipping point.

The Trump administration is eying the possibility of oil leasing in Arctic Ocean areas more than 200 miles from shore, an area where U.S. territorial rights are unclear. Information about the Trump ...

Remains of an ancient Arctic rhino indicate that land mammals traversed the North Atlantic via land bridges, and did so much more recently than previously thought.