Even without any future global warming, Greenland's melting ice sheet will cause major sea level rise with potentially 'ominous' implications over this century.
Even without any future global warming, Greenland's melting ice sheet will cause major sea level rise with potentially"ominous" implications over this century as temperatures continue to rise, according to a study published Monday.
In the new study, published in Nature Climate Change, glaciologists found that regardless of any future fossil fuel pollution, warming to date will cause the Greenland ice sheet to shed 3.3% of its volume, committing 27.4 centimetres to sea level rise. "It's a conservative lower bound. The climate has only to continue warming around Greenland for more commitment," he told AFP.If the high levels of melting seen in 2012 became an annual occurrence, the study estimated sea-level rise could be around 78 cm, enough to swamp vast swathes of low-lying coastlines and supercharge floods and storm surges.
Box, who was an author on that report, said his team's latest research suggests those estimates are"too low". This holds that if more snow piles up on top of a glacier, it causes lower areas to expand. In this case the reduced snow is driving shrinking in lower parts of the glacier as it rebalances, he said.
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