A review of studies on geoengineering has found that deliberately altering the weather as a method for stopping climate change will have negligible effects.
Scientists have known for decades that atmospheric aerosols can create a cooling effect on the climate by scattering incoming solar radiation back to space. In the last several years an increasing number of researchers have suggested that scientists and lawmakers should focus their efforts to combat climate change via artificially cooling the climate by increasing aerosol concentrations. This is what is known as solar radiation management (SRM), a specific type of geoengineering.
According to a 2013 congressional report: