Mexico is working around the clock to replace a decades-old leaking pipeline in Tijuana. The project aims to reduce the risk of transboundary flows.

An additional 5 million gallons of sewage a day is now flowing into the Tijuana River and across the border, something that Mexico is doing deliberately.

East Tijuana residents living alongside factories teamed up with U.S.-based researchers to document polluted water flowing down their streets.

The Tijuana River sewage crisis may be contributing to the current toxic algae bloom off the coast of Southern California, as the added nutrient load from the pollution is fueling the growth of ...

From chronic absenteeism to infrastructure and budget challenges, San Diego's rural districts face a host of unique challenges. That’s likely why students at many of those districts saw the largest ...

With the U.S. rebuffing would-be asylum seekers, shelters in Tijuana are no longer full. But some migrants now say they might ...