Professor Hartmann received his Ph.D. in Geophysical Fluid Dynamics from Princeton University in 1975. He joined the faculty of the Department of Atmospheric Sciences at the University of Washington in 1977, and has been an adjunct faculty of the Quaternary Research Center since 1978. His main research interests are in stratospheric ozone, global climate, large-scale dynamics, and the radiative energy balance of Earth and he has published over 80 research papers on these topics and has authored a textbook about global climate. Dr. Hartmann served as a Principal Investigator in the Earth Radiation Budget Experiment (ERBE) and the Airborne Antarctic Ozone Experiment (AAOE), for which he received NASA Group Achievement Awards. He is a Fellow of the American Meteorological Society and the American Association for the Advancement of Science and serves on numerous national and international service and advisory bodies.