A man-made desert is not fantastic as it sounds. Two major factors are believed to account for the growth of man-made deserts. One is that the borders of desert in arid or semi-arid regions are extended far beyond the natural true desert into more humid climat ...
The Dust Bowl from the Great Plains happened on May 11, 1934, covering half the nation with a thin layer of grit. This was an expensive lesson in the ecological history of the United States. From both economic and ecological viewpoints, most of the Great Plains ...