Glaciers

The high Presena glacier has turned pink in a major bloom of dangerous, ice-melting algae.

Melting ice revealed a long-lost trail in Norway that was strewn with objects dating to the Viking Age.

Antarctica saw two record-high temperatures set between Feb. 6 and Feb.9, and that took a huge toll on the continent's ice, as seen in NASA images.

Two centuries after it was first sighted by Russian explorers, Antarctica is a key site for studying the future of Earth's climate – and for global scientific cooperation.

A new technique for studying ancient microbes in glaciers has led to the discovery of previously unknown viruses.

A robotic submarine is about to descend into a dark, water-filled cavern in Antarctica, to try to find out why one of the continent's largest glaciers is melting so fast.

Taku glacier in Juneau, Alaska, is the world's thickest mountain glacier and was supposed to continue growing through the end of the century. Now, it's losing ground due to climate change.

Scientists have identified the world's fastest-thinning glacier: a stream of rapidly-retreating ice in Patagonia.

Two large rifts have widened near the edge of Pine Island Glacier on the West Antarctic ice sheet. If they continue to grow, they could release an iceberg four times bigger than Manhattan.