[Joint with Jonathan Proctor (Berkeley), Jennifer Burney (UCSD), Marshall Burke (Stanford), Wolfram Schlenker (Columbia)]

Geoengineering is increasingly being discussed both as a cost-effective substitute to carbon mitigation and as a last resort to avoid catastrophic consequences from severe warming. While the climatological and ecological impacts of some forms of geoengineering have been studied, effects on economic activity have not been empirically estimated. This paper exploits variation in high-atmospheric aerosol concentration induced by volcanic eruptions to estimate the impact of aerosol-based solar radiation management on global agricultural production.