News of the WeekClimate Change

A Single Climate Mover for Antarctica

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Science  03 May 2002:
Vol. 296, Issue 5569, pp. 825-826
DOI: 10.1126/science.296.5569.825

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On page 895, researchers build a case that a climate master switch in the atmosphere over the high southern latitudes is driving the wacky climate shifts of Antarctica. And the hand on the switch, they suggest, may be our own. Humanmade chemicals drive the formation of the yearly Antarctic ozone hole, which, they argue, throws the climate switch--called the Antarctic Oscillation--in the atmosphere below.