Antarctic ice melting from warm water below: study
Antarctica's massive ice shelves are shrinking because they are being eaten away from below by warm water, a new study finds.
That suggests that future sea levels could rise faster than many scientists have been predicting.
The western chunk of Antarctica is losing 23 feet (seven metres) of its floating ice sheet each year. Until now, scientists weren't exactly sure how it was happening and whether or how man-made global warming might be a factor. The answer, according to a study published Wednesday in the journal Nature, is that climate change plays an indirect role — but one that has larger repercussions than if Antarctic ice were merely melting from warmer air.
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