This scholar serves as Department Head and a named Professor in two departments at a leading university, with a courtesy appointment in Chemical Engineering. He earned his Ph.D. and M.S. from the California Institute of Technology and his B.S. from Cornell University. His research focuses on atmospheric aerosol modeling, climate change impacts on air quality, and global climate models. He is a recipient of a Fulbright grant and the Sheldon K. Friedlander Award, and his work is funded by major national agencies.