The Briefing Room
General Category => Science, Technology and Knowledge => Archaeology => Topic started by: Sanguine on July 30, 2019, 11:34:32 pm
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By Jeff Hecht
Wet spells in the Sahara may have opened the door for early human migration. According to new evidence, water-dependent trees and shrubs grew there between 120,000 and 45,000 years ago. This suggests that changes in the weather helped early humans cross the desert on their way out of Africa.
The Sahara would have been a formidable barrier during the Stone Age, making it hard to understand how humans made it to Europe from eastern Africa, where the earliest remains of our hominin ancestors are found.
Isla Castañeda of the Royal Netherlands Institute for Sea Research and colleagues studied land plant hydrocarbons in Saharan dust that has settled on the sea floor off west Africa over the past 192,000 years. From the ratio of carbon isotopes in the hydrocarbons they can work out which types of plants were present at different times....
https://www.newscientist.com/article/dn18127-stone-age-humans-crossed-sahara-in-the-rain/ (https://www.newscientist.com/article/dn18127-stone-age-humans-crossed-sahara-in-the-rain/)
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Climate Change allowed humans to escape the African Continent?
How 'bout dat?
:pondering:
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Climate Change allowed humans to escape the African Continent?
How 'bout dat?
:pondering:
Funny how that works.
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A potential "manmade" weatherchange would be more rain in the Sahara, plant some trees, to use CO2.
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A potential "manmade" weatherchange would be more rain in the Sahara, plant some trees, to use CO2.
Flood the Quattarra depression......