How Africa Is Building An 8,000 KM Wall To Stop The Sahara?

How Africa Is Building An 8,000 KM Wall To Stop The Sahara? Africa launched one of the most ambitious environmental projects in history: the Great Green Wall, an 8,000-kilometer restoration initiative designed to fight desertification across the Sahel and slow the expansion of the Sahara. But planting millions of trees turned out to be far more difficult than expected. In this Hidden Earth documentary, we explore why the original Great Green Wall strategy struggled, how scientists and local farmers discovered a different approach to restoring degraded land, and how techniques such as Farmer Managed Natural Regeneration (FMNR) are helping parts of the Sahel turn green again. Can Africa restore millions of hectares of degraded land fast enough to keep pace with climate change and desertification? At Hidden Earth, we uncover the geography, science, and engineering behind some of the world's most extraordinary places and natural phenomena. Every documentary reveals the hidden forces shaping our planet through cinematic storytelling, stunning visuals, and clear, engaging explanations. Discover the world beneath the surface. #GreatGreenWall #Sahara #Africa #Sahel #Desertification #HiddenEarth