Johannes Leon Kirnberger is a policy advisor for AI and sustainability at the AI Unit of the OECD Division of Science, Technology and Innovation (STI). He previously led the program on climate action and biodiversity preservation at the Global Partnership on AI (GPAI) and the International Centre of Expertise in Montreal on AI (CEIMIA). Johannes is a member of the UNEP Expert Group on Digital Tech for Circular Economy, advises the Intergovernmental Panel on Climate Change (IPCC) on the green and digital “twin transition” and serves as guest lecturer at the Technical University of Munich (TUM) on climate change and AI policy. He holds a Bachelor of Science in Management from ESCP Business School, a Master of International Public Management from Sciences Po, and a Master in International Affairs, Energy and Environment from Columbia University.