And it may not just be L.A. County that is vastly underestimating its flood risk: "Across the U.S., we witnessed one city after the other get hit by flooding and be seemingly unprepared for the amount of flooding that happens," said Brett Sanders, a professor of civil and environmental engineering at UC Irvine and the study's lead author.  In addition to noting the increased risk, Sanders said it is crucial to understand who within a community is most exposed to these types of events and may face the longest road to recovery. Read More