Evan Mawdsley is Professor of International History in the Department of History, University of Glasgow. His previous publications include The Russian Civil War (1983/2008), The Soviet Elite from Lenin to Gorbachev: The Central Committee and its Members, 1917-1991 (with Stephen White, 2000), The Stalin Years: The Soviet Union, 1929-1953 (2003) and Thunder in the East: The Nazi-Soviet War, 1941-1945 (2005).Bjirn Lomborg is Director of the Copenhagen Consensus Center and Adjunct Professor in the Department of Management, Politics and Philosophy at Copenhagen Business School. He is the author of the controversial bestseller, The Skeptical Environmentalist (Cambridge, 2001), and was named as… one of the most globally influential people by Time magazine in 2004.