Cities Face 'Whiplash' of Floods and Droughts as Temperatures Rise: Study

The weather in some of the world's most densely populated cities is swinging from droughts to floods and back again, as rising temperatures play havoc with the global water cycle, a study commissioned by the charity WaterAid showed on March 12.

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South and South-east Asia face the strongest wetting trends, while Europe, the Middle East and North Africa are becoming ever drier, researchers found in a study of 42 years of weather data drawn from more than 100 of the world's most populous cities.

"There will be winners and losers associated with climate change," said Professor Michael Singer of the Water Research Institute at Cardiff University, one of the authors of the study. "It is already happening."