Oh, not only, they knew: https://mastodon.social/@HistoPol/109732299947236010
The only thing no-one knows absolutely nothing about regarding its climate impact are the #microplastics in the sky:
https://thetyee.ca/Analysis/2023/03/14/Microplastics-Sky-Climate-Change/
@HistoPol @petergleick
We may not have firm evidence of the consequences of environmental microplastics, but we do have ample evidence of the catastrophic effects of atmospheric particulates.
They trigger famines, little ice ages, and the end of civilizations.
Not one great empire survived unscathed from the volcanic activities of 536 AD. Roman. Chinese. Ganges. Sassanid
https://en.m.wikipedia.org/wiki/Volcanic_winter_of_536
https://en.m.wikipedia.org/wiki/Volcanic_winter#:~:text=to%20rise%20sharply.-,1883,Record%20snowfalls%20were%20recorded%20worldwide.
https://eos.org/articles/how-modern-emissions-compare-to-ancient-extinction-level-events
https://pubs.geoscienceworld.org/gsa/geology/article/50/6/650/612995/Five-million-years-of-high-atmospheric-CO2-in-the
@HistoPol @petergleick
We may not have firm evidence of the consequences of environmental microplastics, but we do have ample evidence of the catastrophic effects of atmospheric particulates.
They trigger famines, little ice ages, and the end of civilizations.
Not one great empire survived unscathed from the volcanic activities of 536 AD. Roman. Chinese. Ganges. Sassanid