Mr. Lester conducted research on cloud dynamics in the Department of Earth Atmospheric and Planetary Science at M.I.T. He currently specializes in performing assessments of health and environmental risks and modelling the fate and transport of chemicals in the environment. Prior to joining Cambridge Environmental, he worked at Skelly and Loy, Inc. preparing Environmental Impact Statements for construction projects.

Mr. Lester graduated Phi Beta Kappa from the Massachusetts Institute of Technology with a B.S. in Physics (1994).