Large releases of atmospheric sulfuric particulates tend to be highly correlated with mega-droughts in the southern hemisphere and disruption of the African and Indian Monsoons, leading to famine and mass displacement.
Of course, It's very difficult to establish causality, but there's some information about it.
Of course, It's very difficult to establish causality, but there's some information about it.
https://www.sciencedirect.com/science/article/pii/S221209471...
climate.envsci.rutgers.edu/pdf/GeoengineeringJGR9inPress.pdf
https://archive.org/details/travelsthroughsy02voln/page/n6