Reduced Order Models of Stratospheric Aerosol Injection
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Stratospheric Aerosol Injection (SAI) is a form of proposed climate intervention to reflect incoming solar radiation, offsetting some of the impacts of greenhouse gas warming. Due to the characteristics of stratospheric circulation, the lifetime of injected aerosols, and the differential impacts that different aerosol patterns can produce on surface climate, many possible scenarios of SAI implementations might exist, ranging from steady, cooperative deployments across one or more injection latitudes to highly dynamic, uncoordinated deployments involving multiple independent actors with different aims. By developing reduced order models of stratospheric aerosol injection, we can examine scenarios at low computational cost. With our improved understanding, we can then use these same reduced order models to design SAI strategies that encourage cooperative behavior and are resilient to unpredictable or even malicious disturbances.