624847 external_news 1566324473 1566324473 What is the full list of climate tipping points for melting ice, permafrost, etc.? And what’s the best guess of when each becomes irreversible? ... “Is it too late for the coral reefs that died in 2016 due to ocean warming? Yes, it’s too late, they’re not coming back. It’s too late for a lot of Arctic melt, for the Greenland ice sheet that’s fallen into the ocean, it’s too late for quite a few important things,” said Kim Cobb, paleoclimatologist and director of the Global Change program at Georgia Tech. “But it’s not too late to avert the worst kind of ugly surprises that come from pushing the accelerator down on a geological system that we know has not responded steadily.”

 

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