The chair Biography and publications Public lectures Audios and videos News Quick access Previous Opening Lecture Researcher Interview Next Presentation Scientific Ecology and Biochemistry: A Symbiosis at the Heart of Sustainable Development – Claude GrisonThe Avenir Commun Durable Annual Chair is supported by the Collège de France Foundation and its major sponsors, the Covéa Foundation and TotalEnergies. Latest news All news I try to break down the artificial barriers between scientific disciplines Claude Grison Published on 27 February 2026 Ecological transition : the hope of sustainability science Press release Published on 19 February 2026 Audios and videos All audios and videos Sébastien Treyer Geopolitical conflicts and economic competition: cooperation as a matter of sound judgment 26 May 2026 Symposium Video Audio Isabelle Delannoy The Symbiotic Economy: The Future? 26 May 2026 Symposium Video Audio Marc-André Selosse The gradual emergence of ideas about cooperation 26 May 2026 Symposium Video Audio