A nuclear war between Russia and the US would trigger a 'Little Ice Age'... lasting thousands of years, according to new research. Firestorms would release soot and smoke into the upper atmosphere that would block out the Sun - resulting in crop failure around the world.
In the first month following detonation, average global temperatures would plunge by about 13 degrees Fahrenheit - more than during the most recent Ice Age. That ended 11,700 years ago - killing off the woolly mammoth.
It had lasted more than 100,000 years - making the world about 10 degrees Fahrenheit colder than today. Lead author Dr Cheryl Harrison, of Louisiana State University, said: "It doesn't matter who is bombing whom.
