Monday, March 15, 2004

Sahara, Climate

The Sahara was established as a climatic desert approximately five million years ago, during the Early Pliocene Epoch. Since the Pliocene, the Sahara has been subject to short- to medium-term oscillations of drier and more humid conditions. Human activity seems to have contributed to the stability of the desert by increasing surface reflectivity and by reducing


Post a Comment

<< Home