peace and hotep,

eja, when you ask and then ask:

"We are now witnessing changes in climate and from what we are seeing, we can deduce how long the kind of changes that turned what were once temperate regions into iced up regions to occur. This kind of drastic change must have happenned at the very least over a few centuries. Why did these Africans not find more suitable habitation? Were they lost or were they just stupid? Or did they have valuable material objects that they were unwilling to leave behind? Great cities that they could not bring themselves to abandon?

eja, do not assume that 'drastic change' can not occur over night like an epiphany. the tsunamis that showed up about the same time as you, just appeared havokingly from nowhere and 'wasted' time and place.

as a scientist, you know that catyclymic thingys are happening all of the time. every second in even this known universe.

freedomisahapislave