Extreme storm surges may occur more often

Global temperature increases could boost hurricane-caused flooding

By Erin Wayman, 14:49 PM March 18, 2013

As the climate warms, deadly flooding caused by storm surges will occur more frequently, scientists predict.

A storm surge is the rise in water above normal tide level that occurs when hurricanes push water toward a coast. In 2005, Hurricane Katrina smacked the Gulf Coast with a storm surge of up to 8.5 meters. During the 20th century, storm surges of this magnitude hit the United States about once every 10 to 30 years.

To calculate how the frequency of extreme storm surges will change, A...

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