"For years, public health experts have warned against eating certain kinds of fish, including tuna, that tend to accumulate mercury. Still, tuna consumption provides more mercury to U.S. consumers than any other source. But recently, as industry cuts down on its mercury emissions, research has found mercury concentrations in some fish are dropping."

"GENEVA, N.Y. - Thirty years ago, New York state officials first uncovered evidence that toxic metals from an old foundry in this historic Finger Lakes city had contaminated an adjoining neighborhood."

"Protests. Hunger strikes. Sit-ins that disrupt construction. At the immense Muskrat Falls hydroelectric dam project in a remote and rugged part of Labrador, the indigenous people who live nearby have been raising louder and louder alarms. But it is not about the dam itself. The controversy is over what will flow from it."

"The trial in a lawsuit by a broad coalition of environmental groups seeking to force BNSF to cover its coal-train loads to prevent water pollution began Monday in federal court in Seattle."

"Are the many hog and poultry farms of eastern North Carolina creating 'fields of filth,' as two groups of environmental activists put it last summer? And if they are, what happens when a hurricane comes along and dumps a foot and a half of water on them?"

EPA says a new non-native species of zooplankton has been found in the Great Lakes. Scientists suspect it may have come from ship ballast, and are not sure what effects, if any, it will have on ecosystems.

"Up to 10 million gallons of raw sewage spilled into Onondaga Lake after a 50-year-old pipe burst during 21 hours of straight rain in Syracuse, New York on October 21. The 42-inch diameter pipe broke south of the Inner Harbor along the Onondaga Lake shoreline."