"The Tennessee Valley Authority has polluted groundwater supplies around all of its coal-fired power plants – including ones near Gallatin and Clarksville, a national environmental group concluded in a report released Thursday."

"MONTREAL — Parts of the Chaudière River remain contaminated despite weeks of cleanup operations and the removal of nearly 43 million litres of oily water from the river."

"Canada's failure to adopt a 'comprehensive national strategy or vision' for ocean science is confounding efforts to plan for the future and make efficient use of funding for ocean research, a new national report released Wednesday concludes."

"PITTSBURGH -- The U.S. Coast Guard is seeking public comments on a proposal that would allow barges to transport shale gas wastewater, a drilling byproduct that can include chemicals, radioactive material and heavy metals."

"Lawmakers desperate to pass the first water resources bill in seven years are facing a $10.3 billion problem."

"AUSTIN, Texas -- Texas voters have proved they are more than willing to spend big bucks on future water projects — but not on sports stadiums."

If you are a fly-fisher, you may go to Michigan's Au Sable River to get away from it all. But you can't get away from the pollution funded by secret money in American politics. NPR turns over some rocks.

"Lone Pine, Calif. -- Rancher John Lacey eyed a rising pasture where water once flowed when his great-grandfather settled in the Owens Valley to find gold. A century after Los Angeles diverted the Owens River, grass once suitable for feeding cows has long been replaced by desert shrubs."

"EDMONTON -- Geotechnical engineers remained at the Obed Mountain coal mine Sunday trying to determine how one billion litres of murky water leaked from a containment pond into the Athabasca River."

"SANTA BARBARA, Calif. — The violet bottom-dwelling, prickle-backed spheres wriggling in the tank in Gretchen Hofmann’s lab aren’t really known for their speed. But these lowly sea urchins adapt so quickly they’re helping answer a question that’s key to understanding ocean acidification."

"As fossil-fuel emissions disrupt marine life, will evolution come to the rescue?"