Thomas Graedel is the Director of the Center for Industrial Ecology and Clifton R. Musser Professor of Industrial Ecology. The Co-author of the first textbook on the subject (Industrial Ecology, Prentice Hall, 1995), he has since written three more books and a number of scholarly articles on aspects of industrial ecology. His environmental assessment matrix, developed during a 27-year career with AT&T Bell Laboratories, is now a standard industrial tool for streamlined life-cycle assessments of the environmental attributes of products, processes, and facilities.

Marian Chertow has been the Director of the IEM program since 1991, and is the original faculty organizer of the Corporate Environmental Leadership Seminar. Prior to that, she worked for ten years in state and local government and environmental business. Since 1995, she has led a project on the future of environmental policy, and is co-editor with Daniel Esty of Thinking Ecologically: The Next Generation of Environmental Policy (Yale University Press, 1997).

Reid Lifset serves as Associate Director of the IEM program and is a research scholar at the School of Forestry and Environmental Studies. He is the editor-in-chief of the Journal of Industrial Ecology, an international quarterly on industry and the environment published by MIT Press for Yale University. He also manages the Yale Program on Solid Waste Policy and edits the Yale Working Papers on Solid Waste Policy

Arnulf Grubler's research and teaching interests focus on the interplay between energy and technology systems and their implications on the environment, in particular on climate change. Both his research and teaching embrace a truly long-term view. He has studied major transitions in energy and technology systems that occurred during the last 300 years and is also an energy/environment futurist serving as lead author for the two major 100-year scenario studies available to date: Prof. Grubler is a resident faculty member every fall term. The remainder of the year he is senior research scholar at IIASA, the International Institute for Applied Systems Analysis in Laxenburg, Austria.

Weslynne Ashton is the Associate Research Scientist and Director of the Program on Industrial Ecology in Developing Countries