America has more than three million miles of rivers and streams. That's an almost incomprehensible expanse of flowing water, and yet half of rivers in the U.S. contain unsafe levels of pollution, ...

State regulators will consider escalating enforcement this week against a landowner accused of years of illegal dumping, grading and unmanaged cattle grazing along Little River, where fecal bacteria ...

Swimmable cities are making a comeback in Europe—just in time for urbanites to escape unprecedented heat waves.

Polluted rivers are disrupting swordtail fish mate choice, causing two species to hybridize and highlighting a hidden threat ...

Children dipped testing kits into the Passaic River, families paddled kayaks and volunteers bagged litter during Paterson's ...

The rivers of Western Pennsylvania have a rich yet troubled history. After years of acid mine drains, sewage leaks and environmental contamination, the region’s rivers have become habitable again ...