Christian Calliess has been a professor of public law and European law at Freie Universität Berlin since 2008. Previously, he held professorships in Göttingen, Graz, and Frankfurt as well as visiting professorships in France and Hungary.  Calliess conducts research in the areas of European, constitutional, and environmental law. With regard to environmental issues, he explores the European requirements and remaining leeway for the Member States. He is co-editor of a commentary on European law, in which he comments on, among other aspects, the provisions of European environmental law.

Since 2007, Miranda Schreurs has been a professor of comparative politics and the director of the Environmental Policy Research Centre at Freie Universität Berlin. Originally from the United States, Schreurs has lived and worked in the U.S., Japan, Germany, and the Netherlands. She has conducted research and taught at Harvard University, Utrecht University, Keio University, Chuo University, and Rikkyo University. Her main areas of research are comparative environmental policy analysis, comparative climate policy, renewable energy and energy efficiency policy, and environmental governance. Schreurs has chaired the European Environment and Sustainable Development Advisory Council since 2011.