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Devastating floods might be more common than we thought, study says

Devastating floods might be more common than we thought, study says

Keep the sandbags handy. Previous flood assessments have underestimated the actual risk of dangerous floods in many parts of the country, according to a new study. By looking back at the historical weather records, researchers have found an important synergy between two flood risk factors in coastal zones that has often gone overlooked. In the past, engineers usually determined flood risk for coastal areas by looking at the separate probabilities of intense rainfall and the especially high seas caused by raging wind, called storm surges. But some of the worst floods in coastal areas are caused by the unfortunate concurrence of big storm surges with high rainfall – a double-whammy...

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