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Published online 23 July 2007 | Nature | doi:10.1038/news070723-4

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Rainfall changes linked to human activity

Greenhouse-gas emissions have made the Northern Hemisphere wetter.

Human activity has made the weather wetter in a large slice of the Northern Hemisphere, say researchers. It has also made the regions just south of the Equator wetter, and those just north of it drier.

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