Abstract

Although there exists a strong uncertainty surrounding the evaluation of the decline of biodiversity, and a larger uncertainty still regarding projections of the decline to come, there is no controversy on the fact that the current rate of extinction is in a crisis. The fact that this decline is above all of anthropic origin is the object of a consensus within the scientific community. This text thus takes as a starting point the existence of a true crisis of biodiversity. This crisis of biodiversity must conclude in the adoption of a principle of protection of the biodiversity, a normative principle which would constrain the relation of man with nature with regard to its diversity. I will show in this text that the principle of sustainable development is not sufficient to adequately define a principle of protection of the biodiversity.