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Modeled Antarctic ice sheet at particular times through the warm Marine Isotope Stage 31 event, around 1.07 million years ago. A similar drastic collapse of West Antarctic ice may happen in the next few thousand years due to greenhouse-gas warming. Ice-sheet elevations and floating ice-shelf thicknesses shown by two different color scales, "yr BP" is "years before present".
Photo Credit: David Pollard
Year Taken: 2009
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