Carlos Rittl holds a bachelor's degree in public administration from the São Paulo Business School of the Getulio Vargas Foundation and a master's and Ph.D. in Biological Sciences/Ecology from the National Institute for Amazonian Research in Brazil. For most of his career, he has led the climate agenda of major organizations in Brazil, having served as Executive Secretary of the Brazilian Climate Observatory, as head of WWF Brazil's Climate and Energy Program, and of Greenpeace Brazil's climate campaign, all with a strong focus on public policies and multilateral processes. He lived in the Amazon for 14 years during his master's and Ph.D. studies and in the early years of his career as an environmentalist. He lived in Germany for 3 years, having been a senior fellow at the Institute for Advanced Sustainability Studies in Potsdam and an international policy advisor to the Rainforest Foundation in Norway. Carlos is a board member of two Brazilian organizations (Uma Gota no Oceano, Amigos da Terra - Amazônia Brasileira), a founding member of two others (Centro Brasil no Clima and Laboratório Observatório do Clima), and a member of the Club de Madrid's Working Group on the Social Dimensions of Climate Change.