This is utterly fricking insane, and buries the lede: at 4°C, natural food chains collapse globally and agricultural suitability for any given crop shifts several degrees of latitude. That’s before considering the havoc introduced by weather patterns.

They’re not predicting “bad,” they’re saying collapse of civilization is inevitable within 82 years, unless they expect five billion people to quietly starve without causing much upheaval. Trump administration sees a 7-degree rise in global temperatures by 2100