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canvas prints desert canvas prints lake chad canvas prints lake canvas prints africa canvas prints sahara canvas prints earth observation canvas prints geography canvas prints satellite image canvas prints from space canvas prints satellite canvas prints landsat canvas prints 20th century canvas prints 1975 canvas prints 1970s canvas prints desertification canvas prints

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Lake Chad, 1975. Landsat satellite image of Lake Chad (centre) located in the Sahel region, just south of the Sahara. In the 1960s this was the fourth largest lake in Africa with an area of more than 26,000 square kilometres. Since then Lake Chad has shrunk dramatically, covering only 1,500 square kilometres in 2000. The loss of area is due to increased use for irrigation, droughts and overgrazing in the area. Vegetation (green) covers some of the old lake bed.

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