Wallace S. Broecker, born November 29, 1931, is Newberry Professor of Geology at Columbia University where he received his B.A. and Ph.D. in 1953 and 1958, respectively. His research interests include paleoclimatology, ocean chemistry, isotope dating and environmental science. His honors and awards include the Desert Research Institute's 1999 Nevada Medal; Oak Park-River Forest High School's Traditional of Excellence Award; National Medal of Science; Blue Planet Prize, Asahi Glass Foundation, Tokyo; Roger Revelle Medal, American Geophysical Union; Wollaston Medal by the Geological Society of London; Joseph Priestly Award by Dickinson College; Vetlesen Award by the G. Unger Vetlesen Foundation; V.M. Goldschmidt Award, Geochemical Society; Alexander Agassiz Medal by the National Academy of Sciences; Urey Medal, European Geophysical Union; A.G. Huntsman Award for Excellence in the Marine Sciences by the A.G. Huntsman Foundation; Arthur L. Day Medal by the Geological Society of America; and Maurice W. Ewing Medal of the American Geophysical Union. He is a member of the National Academy of Sciences.