“In working toward a climate deal, the leaders face high odds. Sweeping changes are needed, but the political will for change does not appear up to the task. The rational thing to do, of course, is to save the planet. But the way that human rationality works makes it unlikely that even the best minds working conscientiously will be able to do that.
“There are two fundamental problems: a collective action conundrum, and a preference for benefits in the short term.”