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When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the future

  • Written by Paul Bierman, Fellow of the Gund Institute for Environment, Professor of Natural Resources and Environmental Science, University of Vermont
When Greenland was green: Ancient soil from beneath a mile of ice offers warnings for the futureWater and sediment pour off the melting margin of the Greenland ice sheet.Jason Edwards/Photodisc via Getty Images

About 400,000 years ago, large parts of Greenland were ice-free. Scrubby tundra basked in the Sun’s rays on the island’s northwest highlands. Evidence suggests that a forest of spruce trees, buzzing with insects, covered...

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