Marcus Sarofim is an environmental scientist in the Climate Science & Impacts Branch in the EPA's Climate Change Division (since September 2010). For the two years before that, he was placed in the same location but as a AAAS (American Association for the Advancement of Science) Science & Technology Policy Fellow. The AAAS program is designed to let PhD scientists contribute to and learn about the government science policy process. Marcus earned his PhD at MIT using computer models to study the implications for the both the climate and economic system of different ways to includes different gases (like carbon dioxide and methane) within one climate policy. Before that, he was a chemist working on topics as diverse as trying to examine the structure of the brain protein that reacts with nicotine or how to figure out ways to make only right-handed or left-handed molecules in laboratory chemical reactions.
Sarofim, M.C., "The GTP of Methane: Modeling Analysis of Temperature Impacts of Methane and Carbon Dioxide Reductions”, Environmental Modeling and Assessment (12 August 2011), pp. 1-9. doi:10.1007/s10666-011-9287-x
Prinn, R., J.M. Reilly, M. Sarofim, C. Wang & B. Felzer, 2007: Effects of air pollution control on climate: results from an integrated assessment model, in: Human-Induced Climate Change: An Interdisciplinary Assessment, (M. Schlesinger et al., eds.), Cambridge University Press; Chapter 8, pp. 93-102
Reilly, J., S. Paltsev, B. Felzer, X. Wang, D. Kicklighter, J. Melillo, R. Prinn, M. Sarofim & C. Wang, 2007, Global economic effects of changes in crops, pasture, and forests due to changing climate, carbon dioxide, and ozone, Energy Policy, 35(11): 5370-5383
Webster, M., C. Forest, J. Reilly, M. Babiker, D. Kicklighter, M. Mayer, R. Prinn, M. Sarofim, A. Sokolov, P. Stone and C. Wang, 2003: Uncertainty analysis of climate change and policy response, Climatic Change, 61(3): 295-320