News tagged with ice sheet

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West Antarctic Ice Sheet collapse is under way

The West Antarctic Ice Sheet, which holds enough water to raise global seas by several feet, is thinning. Scientists have been warning of its collapse, based on theories, but with few firm predictions or ...

May 12, 2014
4.1 / 5 (55) 71

Ice ages only thanks to feedback

Ice ages and warm periods have alternated fairly regularly in the Earth's history: the Earth's climate cools roughly every 100,000 years, with vast areas of North America, Europe and Asia being buried under ...

Aug 07, 2013
4.3 / 5 (32) 47 | with audio podcast

There's something ancient in the icebox

Glaciers are commonly thought to work like a belt sander. As they move over the land they scrape off everything—vegetation, soil, and even the top layer of bedrock. So scientists were greatly surprised ...

Apr 17, 2014
4.5 / 5 (28) 1