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Last year the couple traveled with Al Gore to research climate change in the Antarctic.
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Another possible impact of climate change in the Antarctic is acidification.
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Last year the couple traveled with Al Gore on a climate research expedition to the Antarctic.
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Some climate change naysayers point to Antarctic ice on the rise, as if that makes up for melting ice in the Arctic Circle.
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The team also hopes to take samples of mud from the bottom of the lake, to better understand the geological history of the West Antarctic Ice Sheet and Earth's past climate.
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About 14 million years ago, a period of climate change caused the formation of the Antarctic ice sheet, which averages one mile in thickness and gets up to three miles thick in some parts.
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Climate scientists have been intrigued by observations that Antarctic sea ice shows a small but statistically significant expansion of about 1.9% per decade since 1985, while sea ice in the Arctic has been shrinking over past decades.
BBC: Melt may explain Antarctica's sea ice expansion
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Scientists note that current climate-change models predict that some parts of the Antarctic ice sheet will grow while other parts will shrink, and that parts of the Greenland ice also will melt.
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The rise and fall in both temperature and carbon dioxide, evident in Antarctic ice cores, was at first thought to be evidence of carbon dioxide driving climate change.
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Paul Holland of the British Antarctic Survey (BAS) stuck to his findings last year that a shift in winds linked to climate change was blowing ice away from the coast, allowing exposed water in some areas to freeze and make yet more ice.
BBC: Melt may explain Antarctica's sea ice expansion