"Scientists studying burbot in the Mackenzie River, one of the country's most pristine rivers, have been surprised to discover that mercury, PCBs and DDT in the fish are rising rapidly, a finding they say is linked to climate change."

"Quebec’s tough new light vehicle emissions regulation has become a political hot potato in Canada after the federal environment minister, Jim Prentice, denounced the rule as 'counter-productive' last week in Calgary while laying out Canada’s down-graded emission targets."

"Expectations of a sharp rise in nuclear generating capacity over the next two decades are likely overblown, a Canadian think tank said on Thursday, disputing conventional wisdom that a nuclear renaissance is in full swing."

"Canadian children were exposed to jewelry containing 100 per cent lead for over a year because Health Canada failed to alert parents of the potentially deadly risk, Canwest News Service has learned."

"Newly released federal documents have revealed some potentially inconvenient truths about the environmental impact of Alberta's oilsands industry, along with the risks and economic costs of the Harper government's climate change strategy."

"The Harper government is quietly reviewing the $1.9-billion investment by a state-owned Chinese oil company in two oilsands projects, more than a month after the deal was originally supposed to close."

"The C$16.2 billion ($15.4 billion) Mackenzie pipeline in Canada's Arctic should be allowed to proceed, provided 176 recommendations aimed at securing socioeconomic benefits and minimizing environmental damage are followed, regulators ruled on Wednesday."

"Quebec will become the first province in Canada to adopt California's strict auto emissions standards, the province's environment ministry said on Tuesday."

"OTTAWA -- Half of the children's jewelry items tested at the government's product safety laboratory last year were made of almost pure lead."

"A common chemical used in the plastic lining of frozen-food dinners and many other products is endangering the development of fetuses in pregnant women, a new study suggests."