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 ...

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

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 ...

The Atlantic Meridional Overturning Circulation (AMOC), a system of Atlantic Ocean currents that redistributes heat and nutrients between the tropics and the North Atlantic, is one of the planet's ...

(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 ...

Scientists were caught by surprise after discovering a massive flood of subglacial lakewater burst through Greenland’s ice sheet, spilling copious amounts of water across its surface. As detailed in a ...

Zombie ice from the massive Greenland ice sheet will eventually raise global sea level by at least 10 inches (27 centimeters) on its own, according to a study released Monday. Zombie or doomed ice is ...

It's never entirely summer in Greenland, at least not by southern standards, and several ski expeditions are heading onto the Ice Sheet with their sleds. Summer and early fall combine challenging ...