When you're on a sandy beach or the banks of a river, transformed by rolling waves or slightly still waters, it's likely you're not thinking about what is happening just beneath the surface, where ...

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater—including sewage, industrial waste and runoff—into the Pacific Ocean every ...

Scientists have uncovered new evidence that fireworks can pollute both the air and water in ways that extend beyond the visible smoke. The findings show that leftover debris, fine particles, and ...