Richard S. Lindzen has been the Alfred P. Sloan Professor of Atmospheric Sciences at the Massachusetts Institute of Technology since 1983. Prior to his present position, he held professorships at Harvard and the University of Chicago. His A.B., S.M. and Ph.D. are from Harvard. He is a member of the National Academy of Sciences, the Norwegian Academy of Sciences and Letters, and the American Academy of Arts and Sciences. He is also a fellow of the American Meteorological Society and the American Geophysical Union. He is the recipient of various awards, and has served on numerous committees and panels, including service as a lead author for the IPCC Third Assessment Report. He is the author or coauthor of three books and over 200 papers. His current research is on climate sensitivity, atmospheric convection and on the general circulation of the atmosphere.