In Ethiopia - that is what this is based on - there is only fifteen percent arable land to feed more than a hundred million people. That means that there needs to be more land to feed people domestically, yes? Of course. It is safe to say that most of Ethiopia is a desert! Typically, farmers will drape their livestock around the outside of the area to create poop on the land to make it arable over time. Previously I have found spewing sewerage onto the non fertile land will make it fertile. Now, we need something faster and relatively cheap. If we were to 'heat the land,' there would be condensation and bacteria would grow. This means, of course, that if we were to observe global warming, there eventually would be plant growth in the desert for a while before it became inhospitable, yes? This is all very good and well, problem is we need the 'biomass' now! Who says life can only come from life - we can generate life with heat and water, the founding blocks of life. So, we want to simply heat the sand in patches and hope for rain. If something 'grows' now, it will remain in the soil until the rains falls and new bacteria grow to use the rain and debris as fuels. This means we could use 'radio waves' to heat the desert, a messy way to cheaply 'regenerate' the desert. These waves could carry radiation, like little creatures that are alive to revive the desert areas. These 'little things' would grow bigger and into something that seeds could 'eat,' along with rain and sunlight, we will have much arable land!