Prime Minister Justin Trudeau lost the harshest critic of his plan to impose a carbon tax with Brad Wall's surprise announcement Thursday that he's retiring as Saskatchewan's premier.
Manitoba became the second province on Thursday, June 29, 2017, to raise the spectre of a court challenge against the federal government's carbon-pricing plan.
Nearly 50 years after the opening of Canada's first major oilsands mine, the site is an epicentre of energy, teeming with bustling workers amid signs of its pioneering past and cutting-edge future.
Manitoba and Saskatchewan have been given until the end of 2017 to sign on to Ottawa's national climate change agreement to avoid losing out on millions of dollars to help cut emissions.
When Andrew Scheer first started telling people he was considering a run for the leadership of the federal Conservatives, he'd often get a raised eyebrow in response.
Conservative leadership candidate Michael Chong says his party is partly to blame for the fact his campaign promise of a revenue-neutral carbon tax is such a tough sell.