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Earth

Ominous swelling at Antarctica's icy heart

25 May 2005

ICE at the centre of Antarctica is growing thicker even as ice is melting away at the continent’s edge. Over the past decade the interior of the world’s largest mass of ice, the east Antarctic ice sheet, has accumulated an extra 450 billion tonnes of ice and risen by almost 2 centimetres, according to new satellite radar measurements. Increased snowfall is responsible, says Curt Davis of the University of Missouri in Columbia.

But the finding should not be interpreted as a sign that all is well in the Antarctic, Davis and his colleagues warn. The increased snowfall is probably due…

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