Nearly a century ago, during the Great Migration, less-educated individuals were the ones who left home in search of better lives. The opposite is true today, with the educated more mobile than ever before, leaving some places in a spiral of decline.
Cattle aren't bovine planet-wreckers, they're our green buddies. But that counter-intuitive land management message has lots of haters.
On the World Day to Combat Desertification and Drought, we look at two pioneering ways to stave off the loss of fertile land by challenging the conventional wisdom of merely planting more trees.