Tales of deforestation and desertification in North Africa have been told from the Roman period to the present. Such stories of environmental decline in the Maghreb are still recounted by experts and are widely accepted without question today. International organizations such as the United Nations frequently invoke these inaccurate stories to justify environmental conservation and development projects in the arid and semiarid lands in North Africa and around the Mediterranean basin. Recent research in arid lands ecology and new paleoecological evidence, however, do not support many claims of...