Photo credit: CNN
The effects of farmer managed natural regreening in Niger.
Can the Great Green Wall change direction?
By Kieron Monks, for CNN
(CNN)A 7,700-kilometer wall of trees, running through 11 countries along the southern frontier of the Sahara Desert.
Author: Willem Van Cotthem
Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development. View all posts by Willem Van Cotthem