World atlas of biodiversity: earth's living resources in the 21st century

The UNEP World Conservation Monitoring Centre is the biodiversity information and assessment arm of the United Nations Environment Programme, the world's foremost intergovernmental environmental organization.UNEP-WCMC aims to help decision-makers recognize the value of biodiversity to people everywhere, and to apply this knowledge to all that they do.The Centre's challenge is to transform complex data into policy-relevant information, to build tools and systems for analysis and integration, and to support the needs of nations and the international community as they engage in joint programs of action.