Study Confirms Ancient River Systems in Sahara 100,000 Years Ago

[H-KQGE]

http://popular-archaeology.com/issue/june-2013/article/study-confirms-ancient-river-systems-in-sahara-100-000-years-ago

I never know how to properly interpret the information about this period of Earth history. The Younger Dryas, north American deglaciation seems to be better understood by the sciences & more regular folks. I've looked around to link this comment to something else but my understanding isn't great anyway. If the editors use this info i hope they'll put a comment in it (always good) about this period.
Here's a snippet or two from the article :

Evidence from past research has suggested that, sometime during the period between 130,000 and 100,000 years ago, the Sahara desert region we know today was wetter, featuring rivers and lakes, providing an environment that many scientists theorize permitted the earliest modern humans to migrate northward from points southward in Africa toward the Mediterranean coastline and areas eastward into the Levant.

And

Previous studies have shown that people travelled across the Saharan mountains toward more fertile Mediterranean regions, but when, where and how they did so has been debatable among scholars. Current hypotheses suggest a single trans-Saharan migration, many migrations along one route, or multiple migrations along several different routes. Much more research needs to take place before a consensus model can be constructed.
But this study has shed new light on the debate.
"It's exciting to think that 100,000 years ago there were three huge rivers forcing their way across 1,000 km of the Sahara desert to the Mediterranean -- and that our ancestors could have walked alongside them," said Coulthard.
The study has been published in detail at PLOS One, the open-access scientific journal.