There are a lot of ways that are proposed to stop desertification. It is often caused by rises in population so many of the things that are being done to stop it are stopping the symptoms and not the cause. In China, forests are being planted to stop the advancing sand dunes. This is also going on in Africa to hold off the Sahara desert, as planting trees is supposed to hold the ground together and keep water in the area. On the other hand, a lot of ecologists think that there are simpler answers to this problem, mainly more sustainable land use by local farmers.
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