Marian Chertow is Associate Professor of Industrial Environmental Management and has been Director of the Industrial Environmental Management Program at the Yale School of Forestry and Environmental Studies since 1991. Her research and teaching focus on industrial ecology, business/environment issues, waste management, and environmental technology innovation. Primary research interests are 1) The study of industrial symbiosis including geographically- based exchanges of wastes, materials, energy, and water within networks of businesses. 2) The potential of industrial ecology to underpin ideas of the proposed Circular Economy law in China. 3) The application of innovation theory to the development of environmental and energy technology.