Dr Markus Gehring, J.S.D. (Yale), MA (Cantab), LLM (Yale), Dr iur (Hamburg), is the Director of the Centre for European Legal Studies (CELS), Fellow and Director of Studies in Law at Hughes and a Fellow of the Lauterpacht Centre for International Law. Before joining the Law Faculty, he served for two years as Tutor in Sustainable Development Law, he was also Fellow in Law at Robinson College 2005-2012. He has been a Visiting Professor in several law faculties around the world and held a Jean Monnet Research Chair ad personam in Sustainable Development Law at the University of Ottawa Law Faculty in Canada. In his former department at Cambridge, Politics and International Studies (POLIS), he serves as affiliated Lecturer in European and International Law. He is also an affiliated Lecturer in the Department of Land Economy, a Founding Fellow of the Centre for Environment, Energy and Natural Resources Governance (C-EENRG). He holds a J.S.D. and LL.M from Yale and a Dr iur from Hamburg. A member of the Frankfurt/Main and Ontario Bars, he practiced European and international trade law with Cleary Gottlieb in their Brussels office. Prior to joining Robinson College, he was a tutor in Public International Law at University College, Oxford. He serves as Lead Counsel for Sustainable Trade, Investment and Finance Law with the Centre of International Sustainable Development Law (CISDL), based at McGill University. He serves as Editor-in-Chief for the Cambridge Yearbook of European Legal Studies and co-edits the book series on Implementation of Sustainable Development Treaties with Cambridge University Press and is author of several publications on EU, International and Sustainable Development Law.