Junk Science excerpt: Study: Sahara was verdant until 5,000 years ago; Then — ‘abrupt climate change’ http://junkscience.com/2013/04/07/study-sahara-was-verdant-until-5000-years-ago-then-abrupt-climate-change No word from the researchers as to whether this can be blamed on ancient fossil fuel use. Read more at R&D Mag.