"Reij, Garrity and other scientists working on the ground knew what Wade and other political leaders did not: that farmers in Niger and Burkina Faso, in particular, had discovered a cheap, effective way to regreen the Sahel. They did so by using simple water harvesting techniques and protecting trees that emerged naturally on their farms."
https://www.smithsonianmag.com/science-nature/great-green-wall-stop-desertification-not-so-much-180960171/#vLBrUh2Rv4OVfKcQ.99
Read more: Subcription to Smithsonian Magazine
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