White House Report Says Blocking Sunlight Can Prevent Global Warming

The White House published a report which investigated the “possible deployment” of climate change techniques like artificially blocking sunlight.
Solar radiation modification (SRM), also known as solar geoengineering, is aimed at preventing sunlight from accelerating the warming of the planet.
“Greenhouse gasses warm the climate by blocking a portion of outgoing longwave radiation that would otherwise be emitted into space,” states the report (pdf), published by the White House Office of Science and Technology Policy on June 30. “By contrast, SRM cools the climate by reflecting a greater amount of incoming solar (shortwave) radiation back into space. … SRM offers the possibility of cooling the planet significantly on a timescale of a few years.”…}