"PORTLAND, Ore. -- Who bears responsibility for an impoverished child with a mouth full of rotting teeth? Parents? Soda companies? The ingrained inequities of capitalism? Pick your villain, or champion. They are all on display here as the largest city in the nation with no commitment to fluoridating its water supply -- and one of the most politically liberal cultures anywhere -- has waded into a new debate about whether to change its ways and its water."

"Beside Seattle’s notoriously polluted Duwamish River, an excavator scoops up small pieces of waste metal and slings them onto a rusty mountain at Seattle Iron & Metals Corp. A pile of flattened cars and trucks squats nearby amid vast sheets of scrap metal. For at least the last four years, this auto-shredder and metal recycler has dumped more pollutants into the river than allowed under the federal Clean Water Act, government records show. The levels have ranged higher than 250 times above what’s known to harm salmon that migrate through the river."

"A U.S. study has found an unusually high incidence of gastrointestinal disease in a small U.S. town located downstream from a Teck smelter in Trail, B.C."

"In the early 1990s, anglers in the Upper Columbia River reported seeing beads of liquid mercury floating in the water."

"The Pacific Northwest may be the epicenter of U.S. coffee culture, and now a new study shows the region's elevated caffeine levels don't stop at the shoreline."

"When a bunch of wild pigs showed up around C.J. Strike in 2009, Idaho wildlife officials began to sweat."

After decades of conflict over the Klamath River, stakeholders including farmers, tribes, environmentalists, fishermen, governors, and federal officials, struck an agreement they thought served everybody. Then the Tea Party scotched it.

"BOARDMAN, Ore. -- A new link in the world's future energy supply could soon be built here on the Columbia River, and it would have nothing to do with the vast acres of wind turbines or the mammoth hydroelectric dams that give this region's power sources one of the cleanest carbon footprints in the nation."

"Public health officials have their hands full keeping your clam chowder and raw oysters safe. That's due, in part, to red tides."