Arctic faces a new threat. Soot from Canada's massive wildfires darkens ice and snow. This speeds up melting. The albedo ...

Long-lost 1960s aerial photos let Copenhagen researchers watch Antarctica’s Wordie Ice Shelf crumble in slow motion. By ...

Melting polar ice is slowing the Earth’s rotation, but not enough to offset an even greater acceleration caused by changes in ...

Scientists find rising ocean salinity in Antarctica, reversing decades-long trends and accelerating sea ice loss.

In recent weeks, Western reports revealed a jarring contradiction in the US polar strategy. The US "big and beautiful" bill ...

New research challenges the long-held belief that the Arctic Ocean was covered by a massive ice shelf during ice ages.

A salty surge in the Southern Ocean is melting Antarctic sea ice from below — and causing dramatic changes scientists didn’t ...