As a result, greater evaporation takes place from the surface of Lake Teli, keeping its water level lower.

[3] The climatic history of the region is speculated to have a connection to human migrations at the end of the last ice age about 11,000 years ago.

[4] There is aerial photographic evidence that shows early human settlers of the lakes attempted to stop the desertification that inevitably buried their orchards and crops.

During the African humid period the early humans found the freshwater lake area to be fertile enough to grow crops and may have also domesticated cattle.

As the desert wind from the northeast blew, it carried sand from the plateau above down through notches in the land, depositing it right where farmers were growing crops.