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Antarctic ice-sheet less stable than previously assumed

from University of Hawaii System

The first evidence for massive and abrupt iceberg calving in Antarctica, dating back 19,000 to 9,000 years ago, has now been documented by an international team of geologists and climate scientists, including University of Hawaii at Mānoa Professor Axel Timmermann. The study, "Millennial-scale variability in Antarctic ice-sheet discharge during the last deglaciation," in the May 28, 2014 issue of Nature bears witness to an unstable Antarctic ice sheet that can abruptly reorganize Southern Hemisphere climate and cause rapid global sea level rise. more

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