There's a critical detail missing from today's news stories about the UNEP Emissions Gap Report (see 2/2). They all say that under current policies, heating will "rise to 2.8C". But that glosses over that if climate sensitivity should turn out to be high, heating is projected to be 3.4C. And with all uncertainties included, 4.5C are, while unlikely, not completely out of the question. Risk analysis needs to refer to a worst case, not a 2/3 case. 1/2 The report: https://wedocs.unep.org/bitstreams/8819b586-8d60-4aaf-bd0e-4a48d04759f2/download