Alan Robock on Nuclear Winter, Famine, and Geoengineering

Alan Robock joins us to discuss nuclear winter, famine and geoengineering. Learn more about Alan's work: http://people.envsci.rutgers.edu/robock/ Follow Alan on Twitter: https://twitter.com/AlanRobock Timestamps: 00:00 Introduction 00:45 What is nuclear winter? 06:27 A nuclear war between India and Pakistan 09:16 Targets in a nuclear war 11:08 Why does the world have so many nuclear weapons? 19:28 Societal collapse in a nuclear winter 22:45 Should we prepare for a nuclear winter? 28:13 Skepticism about nuclear winter 35:16 Unanswered questions about nuclear winter