IUCN is the global authority on the status of the natural world and the measures needed to safeguard it because IUCN is a unique union for nature. Its more than 1,400 Union Members include over 50% of all national governments and a huge number of civil society organisations, large and small. It harnesses the experience, resources and reach of both its Union Members and its more than 17,000 experts in science, law and more, to provide the science, knowledge, and tools that enable human progress, economic development and nature conservation to take place together.