Great Wall of Africa on the cards

A grand vision for a wall of vegetation reaching thousands of kilometres across Africa and slowing the spread of the Sahara Desert came a step closer to becoming reality yesterday, with the first international conference to discuss its creation. The Great Green Wall would be a 14km-wide band of trees and shrubbery across the southern border of the Sahara's Sahel desert, stretching over 7000km through 11 countries, from the Senegalese capital of Dakar in the west to Djibouti on the Indian Ocean ...