For the first time on record, rain fell at the summit of Greenland ice sheet. Last weekend, temperatures at Greenland’s highest point rose above freezing for the first time this decade. That fueled an ...

Approximately 400,000 years ago, some areas of Greenland that are now covered by a thick layer of ice were exposed to fresh ...

Four key climate systems are showing signs of instability and approaching tipping points with potentially abrupt and ...

This story was supported by a grant from the Pulitzer Center. This story was made possible through the assistance of the U.S. National Science Foundation Office of Polar Programs. Inside a tent ...

(CNN) — For the first time on record, precipitation on Saturday at the summit of Greenland — roughly two miles above sea level — fell as rain and not snow. Temperatures at the Greenland summit over ...

Researchers bundled in down jackets toiled around the clock in these snowy tunnels as a massive drill rig churned downward to extract core samples and the secrets they contain from the deepest ...

Human-caused climate change boosted Iceland and Greenland ’s temperatures by several degrees during a record-setting May heat wave, raising concerns about the far-reaching implications melting Arctic ...