Los Angeles County is at higher risk of major flooding that previously thought, and Black communities throughout the county face the greatest risk. … Using new modeling techniques, researchers at UC Irvine looked at what they call megacities — which include L.A. — to determine which residents would be most at risk should a flood occur. "We did that by ... intersecting our modeling of the flood extent with the census data that shows where people live," said Brett F. Sanders, one of the study's co-authors and a UCI civil and environmental engineering professor. Read More