All good things, they say, must come to an end – and like woolly mammoths, Tasmanian tigers, and the CW’s Supernatural, one day, humanity’s time will run out for good. In fact, much as we hate to think about it, eventually, everything on Earth will end. But when will that be? Well, believe it or not, we have some weirdly specific dates on that. When will Earth become uninhabitable? As you may be aware, humans are sort of turning the planet into a fiery hellscape wracked by constant climate disaster. As you may not be so aware, we’re also taking...