Efforts to reflect away the sun’s rays might also make the sky whiter, one of many reasons some distrust such geoengineering schemes

What happens when you put a layer of sulfate aerosols into the stratosphere

The white haze that hangs over many major cities could become a familiar sight everywhere if the world decides to try geoengineering to create a cooler planet.

Scientists have long suspected that one oft-discussed geoengineering technique — shooting tiny sulfate particles into the upper atmosphere to deflect sunlight — could turn the blue sky white

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Scientific American 2018:

Cleaning Up Air Pollution May Strengthen Global Warming
New research is helping quantify just how big that effect might be

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