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
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.
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