879,551 views | Willie Smits • TED2009
How to restore a rainforest
By piecing together a complex ecological puzzle, biologist Willie Smits believes he has found a way to re-grow clearcut rainforest in Borneo, saving local orangutans — and creating a thrilling blueprint for restoring fragile ecosystems. NOTE: The core content of this talk has been challenged on a number of grounds. For details, and Willie Smits' response, please see "A challenge to Willie Smits' talk" below.