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About the Cover

Cover Figure


COVER In winter, a layer of frozen seawater with an area of more than 20 million km2 surrounds the Antarctic continent. In spring, this frozen cover begins to break up and in summer, only 4 million km2 of ice remain. The formation and melting of this huge ice mass drives climate, ocean circulation, and the ecosystem of the Southern Ocean. 641 [Photo: D. N. Thomas]

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Science. ISSN 0036-8075 (print), 1095-9203 (online)