Casimir Legrand

Casimir Legrand is a climate diplomacy professional with over five years of experience collaborating with cities, national governments, and global institutions to promote ambitious and equitable climate action. Currently serving as the Senior Manager for Subnational Engagement, Diplomacy, and Policy at C40 Cities and seconded to the UN High-Level Climate Champions Team, Casimir leads initiatives that shape multilateral policy frameworks and enhance city-led climate initiatives. Casimir's past roles include positions at the G7/G20 Research Group and the OECD, contributing significantly to global climate agendas and international relations. They hold multiple degrees in International Relations from esteemed institutions, including the University of Toronto and the London School of Economics.