West Africa is increasingly becoming Sahel (semi-desert) due to environmental degradation. Anyone that has visited or has lived in countries like Senegal, Mali, Mauritania and Niger

(just to name four countries) would tell you what the word Sahel means. Even northern Nigeria where the Boko Haram rebels are causing havoc is a victim of gradual desertification which means an environmental catastrophe is not too far away in that part of the country.