For links see article source.....
Posted for fair use.....
http://www.realclearscience.com/journal_club/2015/11/10/the_sahara_once_had_a_great_river_system_109447.html
The Sahara Once Had a Mighty River System
By Ross Pomeroy
11/10/15
http://images.realclear.com/329606_5_.jpg
The Western...
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