When it comes to finding solutions to climate change, there’s no shortage of technologies vying for attention, from renewable energy to electric vehicles to nuclear energy. One such contender, solar geoengineering, is favored by proponents who say it could quickly cool the planet and give the world time to fully implement efforts to limit emissions and remove carbon from the atmosphere.
But that promise comes with risks, which include potentially poorer air quality or depleted atmospheric ozone – both of which can cause serious health issues of their own.
A new Georgia Tech School of Public Policy-led study published in the Proceedings of the National Academy of Sciences (PNAS) suggests that while those risks deserve further consideration, solar geoengineering could save as many as 400,000 lives a year through a reduction in temperature-related deaths attributable to climate change.