Geoengineering Could Turn Skies White

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.

Efforts to reflect away the sun’s rays might also make the sky whitegeoengineering, artificial volcano, climate change, global warmingr, one of many reasons some distrust such geoengineering schemes

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. Nature has already provided a basic proof of concept. When Mount Pinatubo erupted in the Philippines in 1991, spewing tons of sulfate particles in the atmosphere, it temporarily whitened the sky.  More…