Stories of Erosion
Wind Erosion

Compare the two images. Notice the loss of water (black) which exposes unprotected soil to the air.

"Over 20,000 square kilometers of land that were once submerged now are exposed. Dust storms raise up massive amounts of salt from the exposed sea bed and move it hundreds of kilometers away, depositing on surrounding land and reducing crop production."
Source: NASA's Earth Science Enterprise Informational CD-ROM Version 3

A NASA Landsat Multi Spectral Scanner (MSS) image of the Aral Sea taken in 1973
A NASA Landsat Multi Spectral Scanner (MSS) image of the Aral Sea taken in 1987.