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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
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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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Ningaloo National Marine Park, Western Australia
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Published September 7, 2008
Ningaloo Reef, along the shore of Western Australia, is Australia’s largest fringing coral reef. It is also the world’s only large reef located so close to a landmass.
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Mt. Gambier, South Australia
Published August 30, 2008
Sitting near Australia’s rugged southern coast, the South Australian town of Mount Gambier is built on the side of an extinct volcano. The caldera of the volcano has filled with rainwater, forming a very deep lake that provides the town with water. The large caldera lake is called Blue Lake due to a rather peculiar characteristic: the water turns a brilliant cobalt blue during the summer and early fall.
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