Lake Chad

Lake Chad (in French: Lac Tchad) is a large, shallow lake in Africa. It is economically very important, providing water to more than 20 million people living in the four countries which surround it — Chad, Cameroon, Niger and Nigeria. It is located mainly in the far west of Chad, bordering on northeastern Nigeria. The Chari River is its largest source of water, providing over 90% of Lake Chad's water. The lake possesses many small islands and mudbanks, and its shorelines are largely comprised of marshes. Because it is very shallow — only 7 metres at its deepest — its area is particularly sensitive to small changes in average depth, and it consequently also shows seasonal fluctuations in size. Lake Chad has no apparent outlet, but its waters percolate into the Soro and Bodele depressions.

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The lake is believed to be a remnant of a former inland sea which is estimated to have covered an area of 300,000 km² 6,000 years ago. It was one of the largest lakes in the world when first surveyed by Europeans in 1823, but it has shrunk considerably since then. Climate change and increased demands on the lake's water have accelerated its shrinkage over the past 40 years. In the 1960s it had an area of more than 26,000 km², making it the fourth largest lake in Africa. By 2000 its extent had fallen to less than 1,500 km². This is due to reduced rainfall combined with greatly increased amounts of irrigation water being drawn from the lake and the rivers which feed it, the largest being the Chari/Logon system, which originates in the mountains of the Central African Republic. It seems likely that the lake will shrink further and perhaps even disappear altogether in the course of the 21st century.

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Indeed, the lake dried up in 1908 and again in 1984 and has an average depth of only 1.5 metres. As it retreats every summer, recessional agriculture is practised, while the Buduma people fish from canoes. There are many floating islands in the lake, which is also home to hippopotamuses and crocodiles.

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French: French can refer to more than one article:...

Africa: Africa is the world's second-largest continent and second most populous after Asia. At about 30,244,050 km² (11,677,240 mi²) including its adjacent islands, it covers 20.3 percent of the total land area on Earth. With over 800 million human inhabitants in 54 countries, it accounts for abou...

Chad: The Republic of Chad (Arabic: ???? , Ta??d; French: Tchad) is a land-locked nation in central Africa. It borders Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest and Niger to the west. Due to its distance from the sea and its lar...

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