Desertification in the Sahel (Google / YOU TUBE)

 

VIDEO SEEN AT : GOOGLE ALERTS – DESERTIFICATION

http://youtu.be/emjQpiajEjc

Climate changes, desertification, and subsequent cultural changes in the Sahel

 

Author: Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

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