Video Still of Marie-Claire Cordonier Segger

Professor Marie-Claire Cordonier Segger is a Full Professor of Law at SEED in the Faculty of Environment, University of Waterloo, and International Advisor of the Interdisciplinary Centre on Climate Change (IC3). She serves as C-EENRG and LCIL Fellow in the University of Cambridge and Senior Director of the Centre for International Sustainable Development Law (CISDL), and received the international Justitia Regnorum Fundamentum Award in 2016.

Her research focuses on international law and governance related to climate change adaptation, mitigation and finance, natural resources, investment, trade and the green economy, among other sustainable development challenges.

Prof Cordonier Segger has published 20 books and over 120 papers in five languages, edits the Cambridge University Press Implementing Treaties on Sustainable Development Series, and serves on the Editorial Boards of 7 law journals. Her teaching experience includes as International Professor in University of Chile Law School, Teaching Fellow in Yale University; and Visiting Professor/ Lecturer in Oxford, Cambridge, McGill, Victoria, Montreal, Costa Rica and Kisangani Universities. She leads international education and research networks, serving as Executive Secretary of the Climate Law and Governance Initiative in the UNFCC; Chair of the Biodiversity Law and Governance Initiative in the CBD; Rapporteur for the International Law Association’s Committee on Sustainable Resources Management; Chair of the World Bank LJD Climate Law CoP; and a member of several Boards of Directors and Foundations.

She also holds 20 years of international negotiations, executive and advisory experience that spans 79 countries, including as IDLO Senior Legal Expert and Head of Economic Growth and Trade Department; CIFOR Senior Research Associate, Senior Legal Advisor to the Ramsar Convention, also as Senior Director of Research for Sustainable Prosperity, among other roles. She is a member of the Canadian Bar Association with practice in both civil and the common law systems, fluent in English, French and Spanish, and also speaks basic Portuguese, Italian and German.


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