Overgrazing

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As a result of desertification, 12 million hectares of arable land disappear every year.

Desertification is not the natural process of desert encroachment nor the movement of sand dunes. It is the erosion of arable land as a result of human activity and climate change - a phenomenon that does not only affect Africa.

No fewer than 110 countries are concerned, including the United States, Australia, China and Spain, and overgrazing is often the cause.

When there is poor ground vegetation, the soil deteriorates and becomes less ferticle, preventing its use for crop cultivation.

Source: Air France inflight magazine, May 2012

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