What Happened to Africa's Great Green Wall?

The change in climate and weather patterns is precipitating a rapid spread of the Sahara Desert, encroaching into lands and engulfing huge lakes, according to climate scientists. Seven countries of the Sahel region, an area located just south of the Sahara, therefore initiated a project that will see billions of trees planted across 11 countries by 2030, to serve as buffer zones to stop the desertification. But major challenges remain.

(file photo).

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