UC Irvine Professor Brett Sanders, a coastal engineering expert, said … “We built dams all across the California coast. And the strategy behind the dams, in most areas, was either to provide flood control for downstream communities, in some cases to provide water supply,” Sanders said. “But the dams have now blocked the natural supply of sediment that the coastline needs to be healthy. And now we’re seeing accelerated rates of beach erosion.” [Starts 4:00]min Listen More