"EDMONTON -- Warnings about higher levels of air pollution in the oilsands have emerged in a new provincial air quality report that calls for further investigation into possible pollution sources."

"Energy companies have used thousands of gallons of diesel to frack for oil and gas without obtaining the necessary permits required under federal law, according to a new report by the Environmental Integrity Project."

"A civil defense official says that about 10 million gallons of mining acid leaked into a river that supplies water to tens of thousands of people."

"Oil spill in the Gulf of Mexico may be contributing to a dramatic dive in the region's oyster harvest. Prices are up and the harvest is down, ever since the 2010 BP oil spill, but the exact cause remains unclear.""

"Residents from a modest southeast Houston neighborhood pointed Sunday toward a lagoon of algae-covered water with a pungent chemical smell that filled the parking lot of an abandoned cleaning facility for chemical trucks. Only some weeds and a cyclone fence separate the facility from homes and a charter school."

"Environment Canada says the watchdog does not have the authority to investigate complaints made in 2010 alleging that tarsands’ tailings ponds are seeping into groundwater."

"The thick mats of algae on Lake Erie that poisoned the water supply of Toledo, Ohio, were fed by a type of pollution that's all too familiar in Wisconsin."

"The U.S. Environmental Protection Agency (EPA) is not adequately monitoring more than 172,000 wells used to enhance oil and gas drilling and dispose of drilling wastewater, according to a July 28 report by the Government Accountability Office (GAO)."

After uranium mining poisoned their wells, thousands of Navajos must drive long miles to get water that is safe to drink.

"Less than six months into the job, Ohio Environmental Protection Agency Director Craig Butler grew so weary of Toledo’s mule-like response to long-documented problems at its 73-year-old Collins Park Water Treatment Plant that he entertained the very drastic — and politically explosive — idea of trying to wrest control of it away from the city."