By Bidyut Bikash Goswami, University of Exeter, UK

Abstract 

We begin with a brief overview of Stratospheric Aerosol Injection (SAI), a proposed climate intervention strategy that has attracted significant scientific interest while also raising important societal and ethical debates. I will then focus on the rainfall response over monsoon regions and explore the underlying mechanisms driving these changes. I will show that, in a deliberately cooled world achieved through SAI, the rainfall response over monsoon regions is governed by a combination of factors: stratospheric warming induced by SAI, the radiative effects of elevated CO₂, and plant physiological responses to increased CO₂ concentrations.