From C&RL (College & Research Libraries) News, April, 2019, p. 243:

This organization is a partnership between the UN Environmental Programme and the British non-profit, World Conservation Monitoring Centre. https://www.unep-wcmc.org

The purpose of the UNEP-WCMC is to preserve biodiversity, improving its management while trying to minimize the environmental impacts of humans.  The organization collects data and creates tools for its visualization and analysis.  There are 28 projects currently described.  The “Resources & Data” tab leads to publications and data visualizations.  In addition there is a link to the Biodiversity Heritage Library for older resources.