"The tension between drillers in Pennsylvania's gas-rich Marcellus shale and communities trying protect natural resources has reached a fevered pitch in Clinton County, where a zoning hearing board resigned rather than allow a water withdrawal station at a scenic bend of the West Branch of the Susquehanna River that draws kayakers, hang gliders, hunters and fly fishermen."

"Federal officials began a sweeping crackdown on pollution in the Chesapeake Bay on Friday - threatening to punish five mid-Atlantic states with rules that could raise sewer bills and put new conditions on construction."

"Great Lakes pollution is getting worse because sewage systems are outdated and Ontario’s north is turning into a Wild West for miners and forestry companies, warns Environmental Commissioner Gord Miller."

"A Valdez-based citizen watchdog group told legislators Tuesday that the state's arsenal of oil-response equipment lags behind modern technology and the state division that enforces the rules for preventing and cleaning up spills has an 'ever-worsening funding shortage.'"

The gas-drilling boom that is sweeping Pennsylvania is demonstrating the power of money to overcome landowners' reluctance and influence legislators and regulators. This fall, a gusher of gas-industry political campaign donations is spewing.

"Children whose drinking water contains high concentrations of manganese appear to have lower IQ scores on average than children not exposed to the metallic element, researchers have found."

"U.S. EPA is considering two former Halliburton Co. executives along with one of the most outspoken critics of hydraulic fracturing to provide independent expert advice on its study of the polarizing drilling practice."

"A Veterans Affairs official told Congress on Thursday that despite the evidence of widespread contamination of drinking water at Camp Lejeune, the agency doesn't think that the science yet exists to link exposure to the toxic water led to a host of cancers and other diseases suffered by former base residents."

"The fish are hard to look at. One whitefish has a golfball-sized tumour bulging from its side. Another is simply missing part of its spine, its tail growing from a stumpy rear end."

"The ozone layer that shields life from the sun's harmful rays is projected to recover from harmful chemicals by mid-century, but it will take longer over the polar regions, a United Nations study said on Thursday."