Sivatagban nem, de itt a koninetális éghajlat alatt azért furcsa :)
Írtam már, hogy mielőtt hülyeségeket írkálsz, legalább nézzél már utána...!
Beginning around 7,000 years the Sahara began changing from a savannah to a desert. The climates changes in the Sahara occurred in two episodes — the first 6,700 to 5,500 years ago and the second 4,000 to 3,600 years ago. These changed are may have occurred when the African monsoons and Mediterranean winds returned to their normal locations.
https://factsanddetails.com/world/cat56/sub364/entry-6158.html