New York Times: A new report on human migration and climate change, released as delegates from 182 countries gathered in Bonn over the past two weeks to continue hammering out some preliminary language for a new global climate treaty, made its case plainly: “The impacts of climate change are already causing migration and displacement,” the document began, adding that by midcentury, “the prospects for the scope and scale could vastly exceed anything that has occurred before.” The study, titled …