Professors David Keith and Joseph Aldy and their co-authors say deeper social science research could contribute to policy decisions on this tool to address climate change.

David Keith argues that either or both carbon removal or solar geoengineering  is needed to cool the planet this century. There are no other options.

The premise that solar geoengineering is weaponizable is either false or grossly overstated. It is time to leave such distractions behind and focus more squarely on the real dilemmas of this otherwise promising technology.

David Keith writes that the risks of solar geoengineering cannot be sensibly evaluated without a scenario for goals and governance as with other technologies.

In this episode of Resources Radio, host Daniel Raimi talks with David Keith, a physics and public policy professor at Harvard University and one of the world's leading experts on solar geoengineering. Keith outlines prominent examples of solar geoengineering technologies in development—from ambitious ideas, such as sending aerosols to the stratosphere, to more operational solutions, like painting roofs white to reflect more sunlight into space. An advocate for research on solar geoengineering, Keith discusses how coalitions among like-minded nations and clearer guidance from policymakers could expand deployment of promising technologies.

Professor Robert Stavins interviews David Keith, Gordon McKay Professor of Applied Physics at the Harvard John A. Paulson School of Engineering and Applied Sciences, and Professor of Public Policy at Harvard Kennedy School, considered one of the world's leading scholars on solar geoengineering.

The Technology Factsheet Series offers a brief overview of the technical aspects of salient technologies and their policy relevance for Congressional members and their staff.