Share The African Development Bank (AfDB) said it would support the Great Green Wall initiative with 6.5 billion dollars over the next five years. President of the AfDB, Dr Akinwumi Adesina said this at the One Planet Summit in a forum hosted by France and UK on Monday, News Agency of Nigeria (NAN) reports. The Great Green Wall or Great Green Wall of the Sahara and the Sahel is Africa’s flagship initiative to combat desertification, led by the African Union. The wall’s plan is to plant an 8,000 km long and 15 km wide mosaic of trees, grasslands, vegetation and plants across the Sahara and Sahel.