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Sidi Toui National Park, Tunisia
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Published November 2, 2008
Sidi Toui National Park is in the southern half of Tunisia, in a relatively mountainous area close to the Libyan border.
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Jwaneng Diamond Mine, Botswana
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Published October 26, 2008
otswana ranks first among the world’s gem-quality diamond producers, and diamond mining makes up 70 percent of the nation’s export revenue. The Jwaneng Diamond Mine, in south-central Botswana, sits atop the convergence of three kimberlite pipes—diamond-rich geologic formations. Because the pipes meet just below the surface and cover some 520,000 square meters (128.5 acres) at ground level, the diamonds are mined from an open pit rather than a mine tunneled below the surface.
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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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Penny Ice Cap in 1979 and 2000
Published September 18, 2008
Penny Ice Cap is the southernmost of Canada’s big ice caps. Like other glaciers and ice caps in the Northern Hemisphere, the Penny has been thinning and its valley glaciers have been retreating in recent decades.
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