Overflooded area after rainfall in the Tibesti Mountains, Chad

Lake Chad, 1973 and 2013

Saharan desert rivers, satellite image

Okavango, Botswana, ISS image

Dead camel thorns (Acacia erioloba) in front of sand dunes, Dead Vlei, Sossusvlei, Namib Desert, Namib-Naukluft National Park, Namibia, Africa

View of the Azougui oasis. Azougui cultural landscape. Atar. Adrar lateau. Mauritania