Melting of surface ice in Greenland has been speeding up but is doing the exact opposite in Antarctica, a new study shows.

Glaciers in Greenland may be melting as much as 100 times as fast as than previously thought, researchers report.

A newly discovered city-size lake might contain a history of the world's largest ice sheet in East Antarctica since its earliest beginnings.

The demise of West Antarctica's Thwaites Glacier, one of the world's largest and most unstable glaciers, may not be as imminent as previously feared.

If Paris Agreement targets are not met, melting Antarctic ice shelves could cause catastrophic global sea level rise in the second half of the century.

Large, well-preserved fossils found under Greenland's ice sheet reveal several million years of details about its climate and plant life.

Bacteria may add to melting on the Greenland ice sheet, which covers 656,000 square miles. If it melted, global sea level would rise an estimated 20 feet.

If greenhouse gases continue apace, Greenland and Antarctica's shrinking ice sheets could add 15 inches to sea level rise by 2100, researchers warn.

Glaciologists used 25 years of satellite data to create a new map of Antarctica ice velocity that is 10 times more accurate than previous ones.

Understanding how changes in the tropics affect West Antarctica could help predict the future state of the ice sheet and sea level rise.