Why There's So Much Sand in the Sahara...
The following is an article from the book Uncle Jo... ...nd pebbles crumbled into sand.But what caused the climate to change in the first place? Why did drought tra... ...ts believe that ancient man was the victim of the climate change, but others think he was responsible for i...
http://www.neatorama.com/2012/10/01/Why-Theres-So-Much-Sand-in-the-Sahara/

