A growing global rivalry is making it more important than ever to consider the potential risks and benefits of solar geoengineering, a technology that could help mitigate climate change by reflecting sunlight back into space. Instead of just thinking about how to use this technology to work together to reduce global temperatures, researchers are now exploring how it could be used as a tool of power and influence by countries competing with each other. By examining these scenarios, scientists hope to better understand how to prevent conflicts that could undermine efforts to address climate change and maintain international stability.