Pretty good analyses of the findings. Looking like 3 deg F is a given, with a range of 2.5 to 4. Let that sink in for a moment. Then consider that the biggest criticism of the past IPCC reports has been that they are far too optimistic. Yes, we are fucked. Are we doomed? Well, we still get to decide that, but humanity has assured that our children’s children will curse us for being selfish, short-sighted assholes. The future has yet to be written, but our past does not give me a lot of warm fuzzy feelings. Especially given that this sort of crisis is custom made for generating authoritarian rulers of the “only I can fix this” variety.
ETA: As usual with Ars, the comment section is actually worth reading.