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Bou Craa, Western Sahara
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Published October 5, 2008
Phosphate deposits are one of Western Sahara’s few natural resources. At the Bou Craa phosphate mine, 100 kilometers (about 60 miles) from the coastal city of El Aaiún, abundant, pure phosphate deposits lie near the surface.
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IJsselmeer, Netherlands
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Published August 3, 2008
Beginning in 1932, Dutch engineers completed a dike across the Zuiderzee to create a freshwater lake. Engineers later used pumps to drain water from the area, creating expanses of usable land known as polders. These images show changes in the land cover in one such polder between 1980 and 2007.
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