Political Economy Commons^™

Strategic Incentives For Climate Geoengineering Coalitions To Exclude Broad Participation, Juan B. Moreno-Cruz, Kate L. Ricke, Ken Caldeira

Juan B. Moreno-Cruz

Solar geoengineering is the deliberate reduction in the absorption of incoming solar radiation by the Earth's climate system with the aim of reducing impacts of anthropogenic climate change. Climate model simulations project a diversity of regional outcomes that vary with the amount of solar geoengineering deployed. It is unlikely that a single small actor could implement and sustain global-scale geoengineering that harms much of the world without intervention from harmed world powers. However, a sufficiently powerful international coalition might be able to deploy solar geoengineering. Here, we show that regional differences in climate outcomes create strategic incentives to form coalitions …