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Ice

Long-lost Core Drilled to Prepare Ice Sheet to Hide Nuclear Missiles Holds Clues About a Different Threat

Plant remnants frozen beneath 4,000 feet of ice show that most of Greenland’s ice sheet melted about 1 million years ago, in a climate like today’s.

By Bob Berwyn

The Greenland Ice Sheet, which has enough frozen water to raise sea levels by 20 feet, melted away completely at least once about 1 million years ago, new research shows. Credit: Joshua Brown
The Jökulsárlón glacial lake is seen in Iceland in 2015. New research shows that Earth's ice is melting faster than ever. The annual melt rate grew from 0.8 trillion tons in the 1990s to 1.3 trillion tons by 2017. Credit: Bob Berwyn

Global Ice Loss on Pace to Drive Worst-Case Sea Level Rise

By Bob Berwyn

Ice shelves. Credit: Massimo Rumi/Barcroft Media via Getty Images

Antarctic Ocean Reveals New Signs of Rapid Melt of Ancient Ice, Clues About Future Sea Level Rise

By Bob Berwyn

The Big Picture: What Scientists Do and Do Not Know About Climate Change

By Mark Pagani, John Wettlaufer, Jeffrey Park and David Bercovici

Tipping Points: How Arctic Warming Could Chill Western Europe

By Guest Writer

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