We analyze how geoengineering, associated with a high risk of collateral damages, affects the governance architecture of climate agreements. We clarify under which conditions signatories to a climate agreement can avoid that non-signatories deploy risky geoengineering. We correct and qualify the...

Solar radiation management (SRM), as one form of geoengineering, has been proposed as a last exit strategy to address global warming. Even though SRM is expected to be cheap, it may be risky and associated with high collateral damages. We analyze how SRM affects equilibrium mitigation...