As Climate Politics, Intelligence and Diplomacy Manager, Casimir supports the City Diplomacy team through policy analysis, intelligence sharing, and engagement with external partners, including the International Climate Politics Hub and the 2050 Pathways Platform. Through this work, Casimir helps advance C40’s diplomatic goals of promoting a green and just recovery from COVID-19, enhancing global climate ambition, and building a coalition of cities committed to the principles of the Global Green New Deal. Prior to joining C40, Casimir worked as a Policy Analyst Trainee with the Multilateral Organization Performance Assessment Network at the Organization for Economic Co-operation and Development (OECD) in Paris, France, where he devised and piloted a new engagement strategy aimed at better understanding member states’ multilateral aid priorities. Casimir holds joint Master’s degrees in International Security and International Relations from Sciences Po’s Paris School of International Affairs and the London School of Economics and Political Science (LSE).