Solar Geoengineering, or sunlight reflecting methods (SRM), refers to large-scale approaches that increase the amount of sunlight reflected back into space. This concept could potentially be deployed to stabilize rising temperatures and avoid certain climate tipping points while we finish the decarbonization of the global economy. 

In July of 2025, 22 climate and science nonprofits from across the country met in D.C. for the first time to learn about and discuss the state of research and governance on SRM. While the state of SRM research is growing, it is still insufficient to give future policymakers a deep enough understanding of SRM. Much more research is needed on topics such as the hypothetical effects on agriculture, insurance markets, and migration, just to name a few. 

A primary focus of the convening was on the need for SRM to be looked at through a “risk vs risk framework.” The potential risks of SRM, of which we still need many years of research to better understand, have to be weighed against the escalating risks of unmitigated climate change. In August 2025, they published their workshop outcomes report. 

Download the report —
"Solar Geoengineering Research:
Next Steps for the Climate Movement."
Learn more about this workshop, the takeaways, and what this means
for future climate action in the United States.

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