Diversitas is an international global environmental change research programme sponsored by the International Council of Science (ICSU), International Union of Biological Sciences (IUBS), International Union of Microbiological Societies (IUMS), SCOPE (Scientific Committee on Problems of the Environment) and UNESCO.

Diversitas’s missions are: to promote integrative biodiversity science, linking biological, ecological and social science disciplines in an effort to produce socially relevant new knowledge;to provide the scientific basis for an understanding of biodiversity loss, and to draw out the implications for the policies for conservation and sustainable use of biodiversity.