"The U.S. State Department must halt plans to expand an oil sands pipeline route from Canada to Wisconsin until possible environmental harm has been closely studied, several green groups said in a lawsuit filed on Wednesday."

"Potash Corp of Saskatchewan Inc agreed to spend more than $52 million on plant improvements and pay a $1.3 million civil penalty to resolve U.S. charges that it violated the Clean Air Act over the emission of harmful pollutants such as sulfur dioxide, U.S. authorities said."

"New reports of waterfowl landing on toxic ponds of industrial waste in the oil sands of northern Alberta are being investigated by the Canadian province's energy regulator in light of the death of 1,600 ducks on such ponds in 2008."

"TransCanada Corp.’s $11-billion Energy East pipeline project has run into another stumbling block in Quebec as public opposition mounts over a possible threat to the endangered beluga whales in the St. Lawrence River."

"A disabled Russian cargo ship was en route to port in British Columbia for repairs and the rescue operation was declared officially over Sunday. Now the debate begins."

"CN train derailment in Saskatchewan caused petroleum distillate to ignite, forcing about 50 people to evacuate from a nearby community. The CN train derailment comes in the wake of recent high-profile oil train accidents."

"Boundary Dam held up as first commercial-scale CCS plant and proof that coal-burning is compatible with cutting emissions."

"A stunning Quebec Superior Court injunction that temporarily halted exploratory work on a major cross-Canada oilsands pipeline project is raising fresh questions about whether the Canadian government muzzled a top scientist while reviewing the industry proposal."