In the two and a half weeks since President Trump announced that the US would withdraw from the Paris climate agreement, there’s been a lot of speculation about how the rest of the world will respond, and whether they can address climate change without the U.S. on board. An MIT researcher plans to test exactly this idea with a simulation this Thursday. It's called World Climate Simulation, and it's a mock U.N. negotiation paired with a climate model that spits out the likely result of the