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Could the Sahel be green again?
The Sahel in Africa has been suffering from drought for many decades. Village elder Moussa Si remembers the devastation caused by droughts in the early 1970s and hopes that the building of a Great Green Wall - a 5,000-mile long stretch of vegetation - could see the return of greener times.
(Image: Presenter Thomas Fessy with village elder, Moussa Si, Credit: 成人快手.)
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