Jon Proctor, Solomon Hsiang, and coauthors published a study in Nature estimating the effect of solar radiation management (SRM) on global agricultural production. The paper exploits the historical eruption of massive volcanoes that inject sulfate aerosols into the stratosphere to understand the effect of changing light conditions on crop yields. The paper finds that benefits from cooling, the intended effect of SRM, are fully offset by harm to yields via shading.
Read the study ungated here.
A resource page for the article is here.
Press release here.