Harvard School of Engineering and Applied Sciences: Laboratory experiments on particles for solar geoengineering demonstrate limits of models

"Injecting light-reflecting aerosols into the stratosphere — known as solar geoengineering —could be used in conjunction with emissions reduction to lower the risks of a climate change and cool the planet.  But deliberately introducing particles into the atmosphere may also carry significant risks, and those dangers may increase depending on what aerosols are used. Sulfate aerosols, for example, could contribute to ozone damage and stratospheric heating."


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