Keith G. Harrison served as executive director of the MESB from 1992 until 2005. He holds a bachelor’s degree in fisheries/wildlife biology from Michigan State University and a master’s degree in ecology from Western Michigan University. He is licensed as a registered sanitarian and registered environmental health specialist, and is certified as a senior ecologist. He is a former director of special environmental projects for the Michigan Department of Environmental Quality. Harrison is founder of KGH Environmental PLC, and currently serves on the Ecological Effects Subcommittee for the U.S. EPA’s Advisory Council on Clean Air Compliance Analysis and as a science adviser for the Mackinac Center for Public Policy, a research and educational institute headquartered in Midland, Mich.