"Ontario's environment ministry has given its blessing to a massive, controversial $550 million sewage line -- known as the "Big Pipe" -- that will open the door to billions of dollars worth of new development in the eastern GTA. However, years after construction started on the project in York Region, politicians are embroiled in in-fighting, as the remainder of the pipeline proposed to run through Pickering faces opposition from residents."

"Groups argue over whether benefits of green technology outweigh the possible health effects associated with burning garbage."

"Canada's major waterways have suffered significant alterations in their natural flows, a WWF-Canada report contends."

To get to the root of the obesity epidemic, one Canadian reporter went in search of a junk food farm. There were no fields of Dorito bags waving in the breeze. "What you do see are vast operations growing the raw materials for junk food: soybeans and corn."

"Leftover sludge from water treatment plants contains human waste, heavy metals, pharmaceuticals and whatever else washes into the sewer system. It's also used as fertilizer - which concerns some experts."

"New Brunswick Power announced today that the company will close its coal-fired Grand Lake generating station when its operating license expires in June 2010."

"A furious row has erupted in Canada with conservationists desperately lobbying the government to suspend the annual bear-hunting season following reports of a sudden drop in the numbers of wild bears spotted on salmon streams and key coastal areas where they would normally be feeding."

"Canadian Prime Minister Stephen Harper is getting a chilly reception from environmental groups as he heads to the White House today to talk energy with President Obama."

"It's called the Great Bear Rainforest, but few grizzly bears have been seen on British Columbia's north and central coast this year. Conservationists and bear viewing guides are blaming the disappearance of the bears on the overfishing of salmon, their main food source."

"Health Canada on Friday concluded that a chemical considered a possible carcinogen and commonly found in trace amounts in baby shampoo, bubble bath and liquid soap should not be listed as toxic to human health."

"The Obama administration on Thursday approved a pipeline to carry oil-sands fuel from Canada into the US."

Canada faces a monumental challenge in finding a way to store or dispose of highly radioactive spent nuclear fuel. The problem has dragged on unsolved for decades, and any solution is likely to prove costly.

"A Vernon parent is wondering why school playing fields are still being sprayed with pesticides as communities across the country have discontinued using chemicals to control weeds."

"More than 20,000 old oil and gas wells across [Alberta] have been sitting abandoned or inactive for more than a decade without being cleaned up, worrying landowners and environmentalists who say the sites unnecessarily eat up and possibly contaminate valuable farm land."

"The Canadian Food Inspection Agency has quietly approved a new genetically engineered corn with eight different insect- and weed-fighting traits, but farmer and environmental groups in Canada say the approval was rushed and environmental risks ignored."