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After 1.5-Degree Temperature Rise, What Happens Next?


Earth had its first year-long, 1.5-degree rise in temperature. But does this mean we've already missed our goal of limiting temperature increases to 1.5 degrees? No, argues the Washington Post: There's actually some disagreement about what exactly counts as breaching that threshold — but sci...

No, argues the Washington Post: There's actually some disagreement about what exactly counts as breaching that threshold — but scientists and policymakers agree that it has to be a multiyear average, not a single 12-month period. "The 1.5-degree limit is deader than a doornail," Columbia University climate scientist James Hansen said in a call with reporters late last year.... Scientists don't know exactly when certain tipping points — like the collapse of the Greenland ice sheet or the release of greenhouse gases from thawing permafrost — will occur.

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