Miranda Schreurs is a professor of comparative politics and director of the Environmental Policy Research Centre at Freie Universität Berlin. Prior to her appointment in 2007, she was at the University of Maryland. A native of the United States, Schreurs has also previously lived and worked in Japan, Germany, and the Netherlands. She has been a visiting researcher or professor at Harvard, Utrecht, Keio, Chuo, and Rikkyo universities. Her work focuses on comparative environmental politics and policy in Germany, Europe, U.S.A., Japan, China, and Korea.

Christian Calliess is a professor of law at Freie Universität Berlin. Until his appointment in 2007, he was at Göttingen University. A native of Düsseldorf, Calliess teaches courses on public law and European law. His research focuses on European, constitutional, and environmental law. Against this background, for example, Calliess drew attention to the fact that German regulations for implementation of guidelines reducing fine particulates do not correspond with the European standards. His publications include a fundamental volume called Rechtsstaat und Umweltstaat [Constitutional State and Environmental State]. In this book he examines the theory that there is an inherent contradiction between governmental environmental protection measures and the economic freedom guaranteed by constitutions.