objective of the Conservation Trust is to support conservation activities around the world as they fit within the mission of the National Geographic Society. The trust will fund projects that contribute significantly to the preservation and sustainable use of the Earth's biological, cultural, and historical resources. While grant amounts vary greatly, most range from U.S. $15,000 to $20,000. As National Geographic Society funds are intended to function as complementary support, the trust strongly encourages applicants to seek additional, concurrent funding from other funding agencies. Applications should be submitted at least 10 months before the project is to begin.

Link:http://www.nationalgeographic.com/explorers/grants-programs/conservation-trust-application/