Would injecting sulfate particles into the atmosphere to counteract global warming affect rice yields in the tropics? Yes, according to this paper, but not in the direction I guessed. Even though rice is a tropical crop, it is sensitive to temperature – higher temperatures decrease its yield, and the effect of lowering temperature would be greater than the effect of having less light, leading to increased yield. At least in this study which wired together a complicated climate model with a complicated rice yield model.