Cosmic Winter


If a large extraterrestrial object were to hit the Earth, we would experience a global drop in temperature resulting from dust and aerosols in the atmosphere, which block solar radiation. It may last a few years. The photograph is an artist's rendition of what a nuclear, cosmic or volcanic winter might look like. See also Volcanic Winter, Nuclear Winter.


http://www.kleptography.com/irplaces-fallout2.htm