When the sun sets on the human race, and the cause of death isn’t an asteroid scorching the Earth, whoever or whatever comes after our kind might uncover the documents that defined us—the Magna Carta, any number of national constitutions and international treaties, classic works of fiction. And more recently, that canon has come to include a series of special reports from the UN’s Intergovernmental Panel on Climate Change, or IPCC, warning of the unfolding catastrophe we’ve created for ourselves.