Biodiversity: a human necessity? Dominique Bourg, environmental philosopher, Luc Abbadie, researcher on interactions between biodiversity, biogeochemical cycles and ecosystem functioning, Denis Couvet, President of the Fondation Fondation pour la Recherche sur la Biodiversité (Foundation for Research into Biodiversity). Combining their respective specialties, they offer us a presentation on the question of living organisms and their intrinsic diversity. Based on historical aspects and our knowledge of biodiversity today, they take stock of the foreseeable evolution of life on Earth over the coming decades, and point out the mismatch between the natural adaptation time of ecosystems and the speed of destruction of which humanity is capable. These two ecologists provide the scientific neutrality needed to fully understand the causes of biodiversity degradation. Audiobook in French. Claude COLOMBINI FRÉMEAUX and Patrick FRÉMEAUX