The chair Biography and publications Public lectures Audios and videos News Quick access Previous Opening lecture Researcher interview Next Presentation The Avenir Commun Durable Annual Chair is supported by the Collège de France Foundation and its major sponsors the Covéa Foundation and TotalEnergies.Scientific ecology and life chemistry: a symbiosis at the heart of sustainable development Upcoming Previous Lecture 5 May 2026 10:00 to 11:00 Claude Grison Ecological restoration of polluted and degraded soils : inspiring plant adaptability… Seminar 5 May 2026 11:15 to 12:15 Martine Hossaert Nature-based solutions (SfN) and soil : an essential p… Lecture 12 May 2026 10:00 to 11:00 Claude Grison Wetlands and invasive alien species : towards economically viable natural solutions … Seminar 12 May 2026 11:15 to 12:15 Arnaud Albert What can be done to prevent the introduction of invasive alien species ? Lecture 19 May 2026 10:00 to 11:00 Claude Grison Ecocatalysis, a green and sustainable revolution in chemistry Symposium 26 May 2026 Claude Grison Symbiosis: from plant/microbe mutualism to symbiotic economics and cooperation Next 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 Serge Morand Biodiversity crisis, One Health and Planetary Health 14 April 2026 Seminar Audio Claude Grison Vector-borne disease prevention and public health : what sustainable solutions ? 14 April 2026 Lecture Audio Claude Grison Dialogue with young high school students from Laon 7 April 2026 Seminar Video Audio