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Great Green Wall to Stop Sahel Desertification

Guardian: Imagine a green wall – 15km wide, and up to 8,000km long – a living green wall of trees and bushes, full of birds and other animals. Imagine it just south of the Sahara, from Djibouti in the Horn of Africa in the east, all the way across the continent to Dakar, Senegal, in the west. The building of this pan-African Great Green Wall (GGW) was approved by an international summit this week in the former German capital Bonn, a side event of the joint conference of the committees on science and technology...