Monsoon deluges turned ancient Sahara green

[rangerrebew]

Monsoon deluges turned ancient Sahara green
By
Bruce Bower
4:37pm, January 18, 2017
 

Thousands of years ago, it didn’t just rain on the Sahara Desert. It poured.

Grasslands, trees, lakes and rivers once covered North Africa’s now arid, unforgiving landscape. From about 11,000 to 5,000 years ago, much higher rainfall rates than previously estimated created that “Green Sahara,” say geologist Jessica Tierney of the University of Arizona in Tucson and her colleagues. Extensive ground cover, combined with reductions of airborne dust, intensified water evaporation into the atmosphere, leading to monsoonlike conditions, the scientists report January 18 in Science Advances.

https://www.sciencenews.org/article/monsoon-deluges-turned-ancient-sahara-green?mode=topic&context=60

[Joe Wooten]

I read an article that correlated the "green sahara" to the earth's precession cycles. When the precession allowed a more direct sun beating down on the area 10000 years ago, the rising heat caused cooler, moisture laden winds to blow inward from the Atlantic and Mediterranean Oceans, and the temperature differences created storms that gave regular rainfall to the whole area.

[Idiot]

Monsoon deluges turned ancient Sahara green
By
Bruce Bower
4:37pm, January 18, 2017
 

Thousands of years ago, it didn’t just rain on the Sahara Desert. It poured.

Grasslands, trees, lakes and rivers once covered North Africa’s now arid, unforgiving landscape. From about 11,000 to 5,000 years ago, much higher rainfall rates than previously estimated created that “Green Sahara,” say geologist Jessica Tierney of the University of Arizona in Tucson and her colleagues. Extensive ground cover, combined with reductions of airborne dust, intensified water evaporation into the atmosphere, leading to monsoonlike conditions, the scientists report January 18 in Science Advances.

https://www.sciencenews.org/article/monsoon-deluges-turned-ancient-sahara-green?mode=topic&context=60

A study from the University of Tucson, where the only thing green is a golf course.