The retreat of ice in the Barents Sea could be strengthening a key ocean current that regulates global climate.

Arctic sea ice is headed for one of its smallest winter peaks on record, an AFP review of US data showed Wednesday, as ...

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 ...

Under the Arctic sea ice, fish and plankton live in complete darkness, even in midsummer. Ice floes stop the sun's rays, ...

As the Arctic Ocean loses its sea ice due to climate change, sunlight penetrates deeper into the water and encourages the growth of tiny plant-like organisms (phytoplankton). But to thrive, they need ...

Melting Arctic ice is revealing a hidden world of nitrogen-fixing bacteria beneath the surface. These microbes, not the usual cyanobacteria, enrich the ocean with nitrogen, fueling algae growth that ...

The U.S. Navy has reached a Cold War-era milestone in the Arctic, deploying two Virginia-class submarines beneath the polar ice cap for the 100th time since World War II.

I walked out onto the frozen Arctic water off Utqiagvik, Alaska, for the first time, I was mesmerized by the icescape. Piles of blue and white sea-ice rubble several feet high gave way to flat areas ...

THE NORTHWEST PASSAGE—Climate change is melting sea ice at a quickening pace, and in the process rekindling dreams that have beguiled seafarers for centuries: finding an alternative shipping route to ...

The exercise is the latest to train service members for operations in the strategically important Arctic region.

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 ...