Introduction To preserve nature and natural resources is dedicated by the organisation IUCN. The world's largest and most popular organisation is IUCN. It provides solutions to the problems related to the environment. Other Details The members of IUCN are over 1400 governmental and non-governmental organisations.

International Union for Conservation of Nature (IUCN), in full International Union for Conservation of Nature and Natural Resources, formerly called World Conservation Union, network of environmental organizations founded as the International Union for the Protection of Nature in October 1948 in Fontainebleau, France, to promote nature conservat.

Created in 1948, IUCN is now the world’s largest and most diverse environmental network, harnessing the knowledge, resources and reach of our more than 1,400 Member organisations and 15,000 experts. This diversity and expertise makes IUCN the global authority on the status of the natural world and the measures needed to safeguard it.

The IUCN Red List relies on Assessors (trained individuals, usually species experts) to assess species based on the currently available data and information. This comes from a range of sources, including published scientific papers, books, reports, expert knowledge, indigenous knowledge and citizen science.