Contact: Maria-Jose Vinas-Garcia
NASA/Goddard Space Flight Center
Caption: Under the Greenland Ice Sheet, scientists were greatly surprised to discover an ancient tundra landscape. The finding provides strong evidence that the Greenland Ice Sheet has persisted much longer than previously known, enduring through many past periods of global warming.
Credit: Joshua Brown, University of Vermont
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Related news release: Researchers find 3-million-year-old landscape beneath Greenland ice sheet