In Jared Diamond’s follow-up to the Pulitzer-Prize winning Guns, Germs and Steel, the author explores how climate change, the population explosion and political discord create the conditions for the collapse of civilization. Diamond is also the author of Upheaval: Turning Points for Nations in CrisisEnvironmental damage, climate change, globalization, rapid population growth, and unwise political choices were all factors in the demise of societies around the world, but so