Sub-Sahara nga Aprika: Paggiddiatan a nagbaetan dagiti rebision

Mabalin a manipud idi 3500 B.C.E,<ref>[http://www.sciencedaily.com/releases/1999/07/990712080500.htm "Sahara's Abrupt Desertification Started by Changes in Earth's Orbit, Accelerated by Atmospheric and Vegetation Feedbacks"], Science Daily.</ref><ref>{{cite journal |last=Claussen |first=Mark |last2=Kubatzki |first2=Claudia |last3=Brovkin |first3=Victor |last4=Ganopolski |first4=Andrey |last5=Hoelzmann |first5=Philipp |last6=Pachur |first6=Hans-Joachim |year=1999 |title=Simulation of an Abrupt Change in Saharan Vegetation in the Mid-Holocene |journal=Geophysical Research Letters |volume=26 |issue=14 |pages=2037–2040 |doi=10.1029/1999GL900494 |postscript=<!--None--> |bibcode=1999GeoRL..26.2037C}}, {{cite journal |url=http://www.sciencedaily.com/releases/1999/07/990712080500.htm |title=Sahara's Abrupt Desertification Started By Changes In Earth's Orbit, Accelerated By Atmospheric And Vegetation Feedbacks |work=Science Daily |date=12 Hulio 1999 |publisher=Science Daily |postscript=<!--None--> }}</ref> dagiti rehion ti Sahara ken Sub-Sahara ti Aprika ket naisinsinan babaen ti narusanger unay a klima iti manmano ti populasionna a Sahara, ken mangporma iti maysa nga epektibo a bangen a pasardengen laeng babaen ti [[Karayan Nilo]] idiay Sudan, ngem ti Nilo ket nalappedan idi babaen dagiti [[Dagiti Katarata ti Nilo|katarata]]. Ti [[Teoria ti Bomba ti Sahara]] ket mangipalawag no kasano a ti flora ken fauna (mairaman ti ''Homo sapiens'') ket pimmanaw idiay Aprika ken naserrekanna ti Tengnga a Daya ken iti labes daytoy.