There is a great abundance of places to live in the world, but, eventually we will have used all of the space up, in a hell of a long time. if we were to look at the uninhabitable areas of the desert in africa, north america and the near east, among other areas, then we would have a lot of great places to live that will yield great wheat crops for us if we were to reverse the desertification of these areas. The first thing that comes to mind is a desalination plant on the coasts of these areas. huge beaches nobody will ever use converted in places for water collection - maybe we could place these plants along the coast 'near the rocks' where people cannot swim anyways? the high temperature is good for growing certain types of crops, and, why not grow them there? they will be close to the coast and will be easy to transport from place to place, of course. Then, what about inland? if we were to flush sewerage out these places, the land will absorb what is left in the poop and then start to grow all sorts of things, for a while. it is said life will succeed in any climate, and, with the deserts gaining ground all through africa, for example, we could merely flush these places with life giving... things! If we were to develop a new type of earthworm, one with no natural predators in the desert, then we could make this land a lot more hospitable or inclined to living things and life. this would be where we take this flush story for about two months, then throw a few earthworms out there to cultivate 'this stuff' so that it will be something the earthworms can do something with, yes? this will slowly advance the encroaching lush environment slowly from coast inland, and, then we can groom these areas for anything we really want.
