Melting ice from West Antarctica once delivered huge amounts of iron to the Southern Ocean, but algae growth did not increase as expected. Researchers found the iron was in a form that marine life ...

Against the backdrop of Arctic warming, polar bears in Norway’s far north are gaining fat and feeding on new prey—a testament ...

Findings suggest this part of Greenland is highly sensitive to modest warming, with implications for future retreat.

Arctic sea ice has large effects on the global climate. By cooling the planet, Arctic ice impacts ocean circulation, ...

Scientists have unveiled a powerful new method for predicting Arctic sea ice months in advance, just as climate change drives rapid ice loss.