Earth at 2 hotter will be horrific. Now heres what 4 will look like. | David Wallace-Wells

Earth at 2° hotter will be horrific. Now here’s what 4° will look like. Watch the newest video from Big Think: Join Big Think Edge for exclusive videos: ---------------------------------------------------------------------------------- The best-case scenario of climate change is that world gets just 2°C hotter, which scientists call the “threshold of catastrophe“. Why is that the good news? Because if humans don't change course now, the planet is on a trajectory to reach 4°C at the end of this century, which would bring $600 trillion in global climate damages, double the warfare, and a refugee crisis 100x worse than the Syrian exodus. David Wallace-Wells explains what would happen at an 8°C and even 13°C increase. These predictions are horrifying, but should not scare us into complacency. “It should make us focus on them more intently,“ he says. ---------------------------------------------------------