> Maybe I'm missing something, but besides reducing the Earth's temperature, vulcano eruptions have also caused famines, because reduced solar light impacts cro

> Maybe I'm missing something, but besides reducing the Earth's temperature, vulcano eruptions have also caused famines, because reduced solar light impacts crop yield. There is already around -0.9W/m2 of radiative forcing due to shipping (sulphur in shipping fuels) which is massive compared to volcanos. > We have much better agricultural technology now Yes and no, "modern" agriculture depends massively in fossile fuels and mining so it is not sustainable. > 1. Is there even any research saying we can counteract the reduction in solar light by "planting smarter" I read some research saying we can absorb a significant amount of CO2 by regenerative farming. The best however is to plant forests where cows are grazing. > Agricultural technology is very unevenly distributed. If solar light gets reduced globally, Europe and US might be fine, but Africa, Asia, and South America could still face catastrophic reduction of crop yield. Unstable climate AND heatwaves are much worst to this regard IMHO. But yes, geoengineering is bad.