served as PI on a NASA project called “Modeling and Analysis of the Lower Stratospheric Radiation Field” and as a member of NASA’s Solar Occultation Satellite Science Team. In 1993, he earned his Ph.D. from Harvard University. For the book entitled Ecosystem Change and Public Health: A Global Perspective, he wrote the chapter on “The Changing Chemistry of Earth’s Atmosphere”.


Mack McFarland is an Environmental Fellow at DuPont Fluoroproducts. Dr. McFarland received a B.S. in chemistry from the University of Texas at Austin in 1970 and a Ph.D. in Chemical Physics from the University of Colorado in 1973. From 1974 through 1983, first as a Post-Doctoral Fellow at York University and then as research scientist at the NOAA Aeronomy Laboratory, he planned, conducted, and interpreted field experiments designed to probe the cycles that control atmospheric ozone concentrations. These studies included measurements of gases and processes important to the global climate change issue. In late 1983, he joined the DuPont Company. His primary responsibilities have been in coordinating research programs and assessment and interpretation of scientific information on stratospheric ozone depletion and global climate change as a basis for policy decisions on these global environmental issues. During 1995 and 1996, Dr. McFarland was on loan to the Atmosphere Unit of the United Nations Environment Program, and in 1997, he was on loan to the Intergovernmental Panel on Climate Change (IPCC) Working Group II Technical Support Unit. The value of his contributions to DuPont has been recognized through the 2007 Pedersen Award, a C&P Flagship Award, Environmental Respect Awards, and Environmental Excellence Awards. In 1999, he was awarded an individual Climate Protection Award by the U.S. Environmental Protection Agency for his contributions in providing understandable, reliable information to decision makers. Dr. McFarland has served on the NRC Committee Panel for Chemical Science and Technology and the Committee on the Analysis of Global Change Assessments. He has participated in every major international scientific assessment on stratospheric ozone and global climate change as author, reviewer, or review editor.”


Michelle Santee is the Group Supervisor of the Microwave Atmospheric Science Group at NASA’s Jet Propulsion Laboratory. Her research interests include: polar processes in the lower stratosphere, such as chlorine activation and deactivation, polar stratospheric cloud formation, denitrification and dehydration, and ozone loss; processes controlling HNO3 in the upper troposphere/lower stratosphere (UT/LS); transport of pollution in the UT/LS; and the influence of solar storms on the upper stratosphere. She contributed to the polar chapter of the 2006 Scientific Assessment of Ozone Depletion. In 1993, she earned her Ph.D. in Planetary Science from California Institute of Technology.


Theodore G. Shepherd is a Professor of Physics at the University of Toronto. Stimulated by his role as PI in the development and use of the Canadian Middle Atmosphere Model since 1992, his applied research focuses on the middle atmosphere, including the ozone layer. He was a member of the Steering Committee for the 2006 Scientific Assessment of Ozone Depletion. As a part of WCRP’s SPARC, he was a co-chair of the initiative on Detection, Attribution, and Prediction of Stratospheric Change. For a 2005 IPCC Special Report entitled Safeguarding the Ozone Layer and the Global Climate System, Dr. Shepherd co-authored the chapter called “Ozone and Climate: A Review of Interconnections”. He received his Ph.D. in 1984 from MIT, and was just made a Fellow of the Royal Society of Canada.



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