Wade Davis: Gorgeous photos of a backyard wilderness worth saving

Ethnographer Wade Davis explores hidden places in the wider world -- but in this powerful short talk he urges us to save a paradise in his backyard, Northern Canada. The Sacred Headwaters, remote and pristine, are under threat because they hide rich tar sands. With stunning photos, Davis asks a tough question: How can we balance society's need for fuels with the urge to protect such glorious wilderness?