Temporarily Unavailable for Sale

On the edge of the Kalahari Desert in Namibia, sand dunes are encroaching onto once-fertile lands in the north. Healthy vegetation appears red in this image; in the center, notice the lone red dot. It is the result of a center-pivot irrigation system, evidence that at least one optimistic farmer continues to work the fields despite the approaching sand. Landsat 7 image taken August 1st, 2000. [Source Images for earth energy mandalas and geographical information courtesy of U.S.Geological Survey National Center for EROS (Earth Resources Observation and Science) and NASA Landsat Project Science Office.]