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, ...

Federal officials reached a proposed $125 million deal to build the facilities needed before dredging can begin along the ...

The byproducts of modern society appear to be messing with the love life of two tiny fish species that have long coexisted in Mexican rivers. A Stanford-led study found that the two swordtail fish ...

Once considered one of the most polluted rivers in America, D.C.’s Anacostia River is rebounding slowly. Everyone agrees that the river is in remarkably better shape than it was just a decade ago. But ...

Efforts to improve the “swimmability” of urban areas are gaining global traction, from Paris to Chicago Swimmable Cities is a global alliance of local government officials, experts and advocates ...

A huge quarry owned by one of the Bay Area’s most prominent construction companies is illegally pumping polluted water into a river that flows into the Monterey Bay National Marine Sanctuary, ...