Charles Perrow is an emeritus professor of sociology at Yale University and a visiting professor at CISAC in the winter and spring terms. Among his award-winning research is Organizing America: Wealth, Power, and the Origins of American Capitalism (Princeton, 2002), and Normal Accidents: Living with High Risk Technologies (Princeton, 1999). A revised edition of his 2007 book, The Next Catastrophe, will be published by Princeton in 2011. His recent articles include "Modeling Firms in the Global Economy," Theory and Society, 2009, v 38:3, May, 217-243, "Organizations and Global Warming," in Constance Lever-Tracy, ed. Handbook of Society and Climate change (Routledge, forthcoming, 2010), "Complexity, Catastrophe, and Modularity," Sociological Inquiry 78:2, May 2008 162-73; "Conservative Radicalism," Organization 15:2 2008 271-77; "Disasters Evermore? Reducing our Vulnerabilities to Natural, Industrial, and Terrorist Disasters," Social Research 75:3 Fall, 2008. His recent membership on a National Academy of Science panel on the possibilities of certifying software led to his current work on cyber security. He is also writing on the economic meltdown, but his major interest now is the institutional/organizational aspects of global warming. He received his BA, MA, and PhD from the University of California, Berkeley, all in sociology.