1.5C Threshold Breached
kokopelli
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Joined: 27 Nov 2017
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Location: amid the sunlight and the dust and the wind
You want it from Nature?
How about https://www.nature.com/articles/nature25967:
... Humans in this region thrived through the Toba event and the ensuing full glacial conditions, perhaps as a combined result of the uniquely rich resource base of the region and fully evolved modern human adaptation.
From https://www.sciencedirect.com/science/article/abs/pii/S1040618220303335:
Yeah, there was a supervolcano eruption, but it seems questionable that it caused a population bottleneck.
Double Retired
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I'm not too concerned with whether or not causes of one or two distant past mass extinctions might repeat.
I'm more concerned that due to mankind's use of fossil fuels (and other assaults on the biosphere) we may cause a mass extinction that is not a replay of a past mass extinction. There are hints this may have started.
The only good news is that using technology we might be able to avoid mankind's extinction.
_________________
When diagnosed I bought champagne!
I finally knew why people were strange.
^^^ In the early 1960s the scientific community believed in the population bomb, whereby food shortages would lead to mass starvation. Famous experiments like "Mouse city" predicted human population would over-use their resources leading to population crash by the 1990s. None of them could have predicted how agricultural/food tech would create abundance, and how the birth rate decline would actually be more associated with prosperity in rich countries, whereas poverty actually has accelerated birth rates.
I am sure technology will keep humanity going.
Keep in mind most of Homo sapiens lived in Africa 74,000 years ago. All I am saying is the eruption resulted in a bottleneck and likely triggered mass migration of survivors out of north Africa to search for new lands.