Climate change made Canada's warmest December in more than 50 years about twice as likely, a temperature anomaly that stood out around the world, a new study has found.

As expected, the competing claims centre on a large chunk of the Beaufort Sea floor that Canada also seeks to control.

Canada's chief climatologist says if you don't already have it, the song is the only white Christmas you're likely to get.

Alberta needs an open public inquiry into how the province ensures oilsands producers can pay to clean up after themselves, says a report released Wednesday by a group of university researchers.

It emits a potent greenhouse gas at a higher rate than almost anywhere else in North America, according to new research from one of Canada's premier climate labs.

The Climate Action Network says the award is given to countries "who are the best at being the worst and doing the most to do the least." 

Alberta's New Democrat Opposition and a prominent First Nations leader are calling for a review of the province's energy regulator to be held in public, with public input.

Alberta's energy regulator says it won't reconsider approvals for Suncor to expand an oilsands mine into a wetland once considered for environmental protection.

A recently released document shows David Yager, a longtime oilpatch executive, journalist and conservative activist, is being paid $70,000 to review the Alberta Energy Regulator.

A new American study has confirmed southeastern British Columbia coal mines are contaminating waters shared by Canada and the U.S., adding the miner's attempts to remove selenium from wastewater aren't making much difference to the amount flowing south.