Federal maps underestimate flood risk for tens of millions of people, scientists warn

Researchers harnessed multiple types of data to come up with a new estimate

flooding in Louisiana

UNDER WATER  More than 60 centimeters of rain inundated parts of Louisiana (Baton Rouge shown) in August 2016, driving river gauges across the state to near-record levels and costing more than $10 billion in damages. New research suggests more areas in the United States are at risk for flooding than previously thought.

USDA/Flickr 

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