After four decades of the United Nations climate conference COP, progress on global climate action remains slow. So what isn't working? How is it possible that so much fanfare, so many words, and so much work—much of it genuine and good-faith—has amounted to such little progress?

University of Toronto political science professor Jessica F. Green has some ideas. In Existential Politics: Why Global Climate Institutions Are Failing and How to Fix Them, the longtime observer of global climate negotiations and expert on carbon accounting argues that the COP embodies a “win-win” approach to a problem for which someone has to lose. The challenge is to make sure the right people (and planet) do the winning, while the “fossil asset owners,” as Green describes them, do the losing.