http://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_r
everse_climate_change.html
"Desertification is a fancy word for land that is turning to desert," begins
Allan Savory in this quietly powerful talk. And it's happening to about
two-thirds of the world's grasslands, accelerating climate change and
causing traditional grazing societies to descend into social chaos. Savory
has devoted his life to stopping it. He now believes -- and his work so far
shows -- that a surprising factor can protect grasslands and even reclaim
degraded land that was once desert.
Allan Savory works to promote holistic management in the grasslands of the
world.