The International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to finding "pragmatic solutions to our most pressing environment and development challenges."The organization publishes the IUCN Red List, compiling information from a network of conservation organizations to rate which species are most endangered.
The IUCN supports scientific research, manages field projects all over the world and brings governments, non-government organizations, United Nations agencies, companies and local communities together to develop and implement policy, laws and best practice. IUCN is the world’s oldest and largest global environmental network - a democratic membership union with more than 1,000 government and NGO member organizations, and almost 11,000 volunteer scientists in more than 160 countries.
IUCN's stated vision is "a just world that values and conserves nature." Its mission is to "influence, encourage and assist societies throughout the world to conserve the integrity and biodiversity of nature and to ensure that any use of natural resources is equitable and ecologically sustainable."