Uncertain Remedies to Fight Uncertain Consequences: The Case of Solar Geoengineering

This working paper examines how uncertainty and anticipated learning may affect decisions around the deployment of solar geoengineering.



Sept. 5, 2023


Felix D. Meier and Christian P. Traeger


Working Paper

Reading time

1 minute


Solar geoengineering can cool our planet and counteract the warming caused by greenhouse gas emissions. Given current emission trajectories, solar geoengineering has the potential to save lives, reduce severe impacts on economic production, and save ecosystems and island states. Deterministic integrated assessment models tend to show major benefits from solar geoengineering, but are highly sensitive to the assumed and highly uncertain damages from solar geoengineering as well as the effectiveness of cooling the planet. We analyze how uncertainties and the anticipation of learning change the case for solar geoengineering in a world with an uncertain temperature response to carbon dioxide emissions.


Felix D. Meier

Kiel Institute for the World Economy

Christian P. Traeger

University of Oslo

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