Marie-Claire Graf is a national and international climate policy consultant and advocate, co-founder of Youth Negotiators Academy, former focal point of the Youth Constituency at United Nations Climate Change, and former vice-chair on youth at United Nations Food Systems Summit. She is a climate justice activist and public speaker working for a just transition toward sustainable development and ambitious climate action. She was the youngest negotiator of Switzerland to the UN climate negotiations and is currently training young diplomats from all over the world for multilateral processes. She has been studying at ETH and the University of Zurich (political and environmental sciences). She is a trained Climate Reality Leader.