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  • RESEARCH HIGHLIGHT

An ice core from cold-war days reveals Greenland’s green and balmy past

CRREL engineers recover the Camp Century ice core c. 1966

An ice core (above) drilled in 1966 has revealed that the ice sheet covering Greenland melted away and was restored at least once in the last million years. Credit: ERDC Cold Regions Research and Engineering Laboratory

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Nature 591, 505 (2021)

doi: https://doi.org/10.1038/d41586-021-00679-8

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