At the end it was pointed out that the government had purchased - or maybe just annexed - millions of acres of grasslands so that they would forever stay grasslands, thereby mitigating the effect of any future dust storms.
But it also pointed out that northern Africa, which is now a desert, was once a fertile forest land, and that was only 2500 years ago. If nature want to change the landscape, it just By God will. But the Dust Bowl didn't have to happen.
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