Joshua S. Goldstein is an International Relations professor who writes about the big issues facing humanity. He is the author of six books about war, peace, diplomacy, and economic history, and a bestselling college textbook, International Relations. Among other awards, his book War and Gender (2001) won the International Studies Association's 'Book of the Decade Award' in 2010. Goldstein has a B.A. from Stanford and a Ph.D. from M.I.T. He is professor emeritus at American University in Washington, DC, and research scholar at the University of Massachusetts, Amherst, where he lives. See www.joshuagoldstein.com.Staffan A. Qvist is a Swedish engineer, scientist and consultant to clean energy projects around the world. He has lectured and authored numerous studies in the scientific literature on various topics relating to energy technology and policy, nuclear reactor design and safety, and climate change mitigation strategies - research that has been covered by Scientific American and many other media outlets. Trained as a nuclear engineer (Ph.D., University of California, Berkeley), he is now involved in renewable energy development projects and also works with several 'fourth generation' nuclear start-ups. For more information, see www.staffanqvist.com.