Extended Data Fig. 5: Total effect of SRM on maize, soy, rice and wheat yields.
From: Estimating global agricultural effects of geoengineering using volcanic eruptions
Total effects are constructed by summing the partial effects from insolation, temperature, precipitation and clouds. Effects are relative to the climate-change-only scenario. Changes in uncropped land have been masked out by setting the values to zero. Statistically insignificant effects (P > 0.05) are hatched. We calculate P values using a two-sided t-test comparing the estimated effect of SRM to a null hypothesis of zero effect. When calculating the distribution of the estimated SRM effect, we consider only statistical uncertainty. This uncertainty is shown in Extended Data Table 2, Extended Data Fig. 2, and the calculations are described in Supplementary Information, section IV.4.
