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Senegalese plant circular gardens in Green Wall defence against desert

This project marks a new, more local approach to what is known as the Green Wall initiative, launched in 2007, that aims to slow desertification across Africa’s Sahel region, the arid belt south of the Sahara Desert, by planting an 8,000km (4,970 miles) line of trees from Senegal to Djibouti.
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