https://roman-empire.net/places/mount-krakatoa-eruption/
The Krakatoa eruption of 535 ushered in several years of cold “dark age” when grain crops in the Holy Roman Empire failed. It ushered in the first of the plagues which persisted for centuries in Europe. The kill off of Roman grain eaters in the middle east ushered in the migration and takeover by beef-eating Turks from the Steppes. The population void gave us Muhamed’s goat-eating armies and Islam.
Modern CO2 is a non-existent blip.
“The population void gave us Muhamed’s goat-eating armies and Islam.”
Islam had the advantage of being both a warrior culture, and a lot of life rules such as washing up 5 times a day for prayer, using one hand for sanitary purposes and the other for eating from the communal pot, not eating certain foods especially likely to convey disease like pork and seafood, etc. Thus Islam’s fighters had a clear survival advantage by avoiding some of the serious disease spreading behaviors. Does anyone have information on their possible rats, fleas, and lice avoidance rules, also rules for dealing with dead bodies (I know quick burial was one)?