Deputy Director at the Centre for European Legal Studies (CELS) and Tutor in Sustainable Development Law at the Faculty of Law, University of Cambridge. He also serves as Lead Counsel for Trade, Investment and Financial Law with the Centre of International Sustainable Development Law (CISDL), Montreal and he holds an ad personam Jean Monnet Chair at the University of Ottawa, Faculty of Law. He is also a Fellow in Law at Robinson College. He represented the CISDL at climate negotiations in The Hague, Milan, Montreal, Copenhagen & Cancun and several other international conferences. He served on the Research Committee of the IUCN Academy for Environmental Law. Dr Gehring has published on various aspects of economic, European and climate change law. He has published several books including most recently with MC Cordonier Segger and Andrew Newcombe, Sustainable Development in World Investment Law (Kluwer Law International 2010).