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This article is part of TPM Cafe, TPM’s home for opinion and news analysis. It was originally published at The Conversation. About 400,000 years ago…
Ancient soil was buried under a mile of ice until excavated during the Cold War.
By Paul Bierman, University of Vermont, and Tammy Rittenour, Utah State University | - About 400,000 years ago, large parts …
Knowing Greenland’s ice-free history offers a warning for the future as global temperatures rise.