Thursday, December 8, 2016

Be prepared for more ‘extreme’ rainfalls — think biblical floods — U.S. climate scientists warn


A huge thunderstorm strikes Las Vegas in 2015. The reason for the expected heavier rainfalls is simple physics: warm air can hold more moisture than cold air.
Ethan Miller/Getty Images/File
   In a research paper that reads like it was written by a horseman of the apocalypse, U.S. climate scientists are predicting more frequent extreme rainfalls, the kind of downpours that cause flooding, landslides and massive infrastructure damage, especially in cities where paved ground cannot absorb water.
   The same goes for snowstorms and ice storms, according to the team from the National Center for Atmospheric Research, which also found the expected frequency of these “extreme precipitation events” increases five-fold in large parts of Canada and the western United States in the coldest winter months. The effect is dramatically lessened south of the 30th parallel, which runs through Houston, Texas...

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