Fwd: Human history and volcanoes/natural SRM?

[Greg Rau]



https://e360.yale.edu/features/climate-clues-from-the-past-prompt-new-look-at-history

“ The study found that 62 of 68 dynastic collapses⁠ occurred soon after Northern Hemisphere volcanic eruptions, an outcome that had only a one-in-2,000 chance of happening if the eruptions and collapses were unrelated. Chinese have traditionally cited the withdrawal of the “mandate of heaven” to explain the cold weather, droughts, floods, and agricultural failures that seemed to accompany the fall of dynasties. The paper contends that those phenomena have a climatic explanation.”

[Alan Robock ☮]

This is the paper:

Gao, Chaochao, Francis Ludlow, Al Matthews, Alexander R. Stine, Alan Robock, Yuqing Pan, Richard Breen, Brianán Nolan, and Michael Sigl, 2021: Volcanic climate impacts can act as ultimate and proximate causes of Chinese dynastic collapse. Communications Earth & Environment, 2, 234, doi:10.1038/s43247-021-00284-7.

https://www.nature.com/articles/s43247-021-00284-7.pdf

Alan

On 1/14/2022 4:54 PM, Greg Rau wrote:



https://e360.yale.edu/features/climate-clues-from-the-past-prompt-new-look-at-history

“ The study found that 62 of 68 dynastic collapses⁠ occurred soon after Northern Hemisphere volcanic eruptions, an outcome that had only a one-in-2,000 chance of happening if the eruptions and collapses were unrelated. Chinese have traditionally cited the withdrawal of the “mandate of heaven” to explain the cold weather, droughts, floods, and agricultural failures that seemed to accompany the fall of dynasties. The paper contends that those phenomena have a climatic explanation.”

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