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Published online 1 March 2007 | Nature | doi:10.1038/news070226-12
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Antarctic 'sandbags' may protect ice
Glacial deposits could help to protect against sea-level rise.
Antarctic ice is protected from the sea by rocky wedges of debris that act as 'sandbags' to protect glaciers from rising waters, a survey of one of the continent's major ice flows has revealed. If much of Antarctica's ice is protected in this way, it may help to fend off ice melting as a result of rising sea levels.
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