27 Items

clouds and sun in the upper atmosphere


Audio - Resources Radio

Reflecting on Solar Geoengineering, with David Keith

| May 12, 2020

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.

David Keith and Robert Stavins

Doug Gavel

Audio - Harvard Environmental Economics Program

The Potential Promises and Pitfalls of Solar Geoengineering: An Interview with David Keith

| Feb. 07, 2020

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.

Mount Etna erupting


Analysis & Opinions - Project Syndicate

Let's Talk About Geoengineering

| Mar. 21, 2019

There is growing scientific interest in solar geoengineering as a possible means of combating climate change in conjunction with emissions cuts. But by foregoing debate and research on these new technologies now, political leaders may actually increase the risks of their future misuse.

Report - Harvard Project on Climate Agreements

Governance of the Deployment of Solar Geoengineering

The Harvard Project on Climate Agreements has released a volume of 26 briefs that explores a range of topics related to how we might govern the deployment of solar geoengineering.



News - Harvard Project on Climate Agreements

Harvard Project Conducts Research Workshop on Governance of Solar Geoengineering

  • Robert C. Stowe
| Oct. 26, 2018

The Harvard Project on Climate Agreements conducted a research workshop, “Governance of the Deployment of Solar Geoengineering,” September 27 – 28, 2018 at Harvard Kennedy School. Harvard’s Solar Geoengineering Research Program collaborated and provided support for the workshop. 

Cloudy skies during an International Space Station flyover on Oct. 22, 2017.


Policy Brief

Boston Tech Hub Faculty Working Group Brief: Solar Geoengineering

| Oct. 16, 2018

This pre-session briefing document for the Boston Tech Hub Faculty Working Group provides background information on the subject of solar geoengineering; identifies current controversies, debates, and/or outstanding questions about the subject; poses discussion questions; and recommends relevant readings.

Discussion Paper - Harvard Project on Climate Agreements

An Economic Anatomy of Optimal Climate Policy

| August 2018

The authors introduce geoengineering into an optimal control model of climate economics. Together with mitigation and adaptation, carbon and solar geoengineering span all possible climate policies. Their wildly different characteristics have important implications for policy. They show in the context of their model that: (i) whether emissions are positive or zero the optimal carbon tax always equals the marginal cost of carbon geoengineering; (ii) the introduction of either form of geoengineering leads to higher emissions yet lower temperatures; (iii) in a world with above-optimal cumulative emissions, mitigation alone is insufficient and only a complete set of instruments can minimize climate damages.

This is an updated version of a paper first published in July 2017.