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Socio-economic impacts

The decrease of rainfall during the last 30 years happened over the whole West Africa from the Sahel down to the Guinea Coast.

The consequences of the related abrupt decrease of water resources were devastating to both populations and economies.
In Sahel, the cattle population was divided by two, some exportation cultures disappeared. In the more humid regions to the South, a severe shortage of electricity was caused by hydropower plants being shut down, during the summers of 1984 and 1998, following the weakness of the preceeding rainy seasons.
It was estimated that the solid economic growth (at a rate of over 5% a year) of a country like Ghana was stopped in 1999, due to this water resources related problem.

Example of the consequences on the fishing caused by the lac Tchad diminution

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Evolution of the Tchad Lake
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