The Earth Politics Center (EPC) aims to produce interdisciplinary research of excellence, visible and attractive in France and internationally, in collaboration with stakeholders acting at both local and global levels. With the aim of responding to the scientific and political issues raised by various diagnoses on the state of the planet (growing effects of industrial and agricultural activities on the major balances of the biosphere, disruption of the major water, carbon or nitrogen cycles, etc.), the Center has set itself the mission of developing new ways of knowing and governing these socio-environmental phenomena, while at the same time forming part of a transformed relationship between science and society. Founded in 2019, the EPC has enabled the emergence of an interdisciplinary research community based on the joint exploration of nature and societies by the experimental sciences (physical and biological) and the humanities and social sciences. An Earth challenged by habitability. University and the Challenges of Earth Knowledge, a strategic positioning text, defines its research agenda for the years to come and gives concrete expression to these three years of interdisciplinary dialogue.