Quote Originally Posted by Fuchs View Post
Sooner or later a couple million people need to migrate into rather humid areas (or areas close to rivers), usage of semiarid areas should be regulated like high seas fishery (albeit more strictly and more effectively) to enable recovery and to stop desertification before it reaches more valuable agricultural areas and finally these regions need to set up sustainable energy supply.
Survive there these people cannot. From there someone must take them and someplace else put them.

Probably not the worst prescription in the realm of pure theory, but who do you think should carry it out? Who would provide that strict and effective regulation of the use of semi-arid regions?