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Published online 12 December 2006 | Nature | doi:10.1038/news061211-5

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What happens when two nations battle with nukes?

A regional nuclear war would have long-lasting effects on the planet.

More than 20 years ago, it was theorized that "a nuclear winter" would occur in the event of a superpower war using nuclear weapons. Now new computers, better climate-modeling techniques, and comparisons to natural disasters such as volcanic eruptions, shows that even a regional conflict would throw the planet into turmoil.

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