Savory said the annual rite of movement through a region by large herds actually protects the environment. A wildebeest migration in central Africa, for instance, eats up grasses as it moves along and leaves behind a protective layer of trampled dung, dust and soil.
Trying to mimic the roles of wild herds
That protective layer, it turns out, is vital for healthy soils that trap carbon, break down methane and produce more grasses every year to feed returning grazers
That protective layer, it turns out, is vital for healthy soils that trap carbon, break down methane and produce more grasses every year to feed returning grazers
Allan Savory: How to green the desert and reverse climate change #TED : http://on.ted.com/bRfO
