Lake Chad, Africa

Eugster, H.P. Maglione, G. (1979) Brines and evaporites of the Lake Chad basin, Africa. Geochimica et Cosmochimica Acta 43, 973-981. 

The guinea worm infection is a very old parasitic disease caused by Dracuncu-lus medinensis which are enlongated thread-like filarial worms living in the deep connective and subcutaneous tissues of man. The infection has been reported from different parts of Africa, South America and Asia however, it is endemic in Cameroon, Lake Chad, Sudan, Uganda and India. 

We can also give examples of water volume reduction in lakes or fluctuations of their water level such as, for example, that which occurred with the Mono Lake, a salt lake in the USA the Chad Lake in Africa the Dead Sea in Israel, etc. But degradation of the sea - this can be referred to as a real regional disaster. 

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