Newspaper article Charleston Gazette Mail

Warming to Triple Heavy Downpours in US by End of Century, Study Says

Newspaper article Charleston Gazette Mail

Warming to Triple Heavy Downpours in US by End of Century, Study Says

Article excerpt

WASHINGTON - Extreme downpours - like those that flooded Louisiana, Houston and West Virginia earlier this year - will happen nearly three times as often in the United States by the end of the century, and six times more frequently in parts of the Mississippi Delta, according to a new study. Scientists have long pointed out that warmer air holds more moisture, so man-made climate change will increase the frequency of extreme downpours. That increase has already started, they say, but new work with much stronger computer simulations shows just how bad it will get, and where.

The high-resolution computer simulation - about 25 times better than other computer models - projects at least a fivefold increase in downpours in the Gulf Coast, Atlantic Coast and Southwest, according to a study in Monday's journal Nature Climate Change.

Study lead author Andreas Prein, a scientist at the National Center for Atmospheric Research , said the entire U.S. will average a 180 percent increase in these types of downpours by 2100. …

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