Last chance to hold Greenland back from tipping point

时间:2019-03-14 02:04:02166网络整理admin

By Anil Ananthaswamy New data and models show that Greenland’s ice cap, the world’s second largest, is on track to hit a point of no return in 2040 ON 4 AUGUST 2010, the Petermann glacier in Greenland sounded a warning. A gigantic slab of ice broke off and the glacier retreated 15 kilometres, leaving it further inland than it has been since observations began a century ago. That warning went unheeded at the UN climate talks in Cancún, Mexico, last month. Delegates left without agreeing drastic cuts in greenhouse gas emissions,