The Los Angeles River as seen from the 7th street bridge on the east side of Downtown Los Angeles. After 24+ hours of heavy rain the river was not close to overflowing, but was running swift and well beyond the usual trickle that typically runs through this area. February 5, 2024. Photo by Jules Hotz for CalMatters

CAL MATTERS VIDEO: California’s runoff flows down the drain. Can more be captured?

Researchers say if California could collect and treat more stormwater in cities, it could provide enough water to supply a quarter of the state’s urban population.