Allen Savory: How to Green the World's Deserts and Reverse Climate Change

One of the most compelling talks I've seen all year. Allen Savory presents a natural solution to reducing the amount of carbon dioxide in the atmosphere. He's tested this method on over 15,000,000 hectares of land. He's been turning desert into productive vegetative land simply by using domesticated herds to mimic natural herd behavior in a predator and prey environment.