Could Spraying Aerosols Into The Atmosphere Cut Global Warming Impacts In Half?

It may sound like an idea out of a science fiction movie: spraying aerosols into the atmosphere to reflect sunlight and cool the Earth.

But a new study by scientists at MIT, Harvard and Princeton says the process — called solar geoengineering — may be a cheap and effective way to reduce the impacts of global climate change.

Kerry Emanuel, professor of atmospheric science at MIT. The Department of Earth, Atmospheric and Planetary Sciences tweets @eapsMIT.