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Study links warming to some 2012 wild weather

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WASHINGTON — A study of a dozen of 2012’s wildest weather events found that man-made global warming increased the likelihood of about half of them, including Superstorm Sandy’s devastating surge and the blistering U.S. summer heat.

The other half — including a record wet British summer and the U.S. drought last year — simply reflected the random freakiness of weather, researchers with the U.S. National Oceanic and Atmospheric Administration and the British meteorological office concluded in a report issued Thursday.

The scientists conducted thousands of runs of different computer simulations that looked at various factors, such as moisture in the air, atmospheric flow, and sea temperature and level.

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