Africa :: Namibia
Caption
On the edge of the Kalahari Desert, sand dunes are encroaching onto once-fertile lands in the north. Healthy vegetation appears red in this false color satellite 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. Image courtesy of USGS.
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Factbook photos - obtained from a wide variety of sources - are in the public domain and are copyright free.
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