Long-lost ice core reveals that much of Greenland was green 416,000 years ago Meltwater pouring over ice at the edge of the Greenland Ice Sheet near 660 at midnight, Kangerlussuaq. Greenland (Photo courtesy of Paul Bierman / University of Vermont). During the Cold War, a secret U.S. Army mission, at Camp Century in northwestern Greenland, drilled down through 4,560 feet of ice on the frozen island-and then kept drilling, to pull out a 12-foot-long tube of soil and rock from below the ice.

https://www.miragenews.com/recent-greenland-melt-signals-rising-sea-level-1051031/

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