The hearing has been re-scheduled to September.

The Supreme Court was already set to hear appeals from Ontario and Saskatchewan prior to Alberta's ruling.

The Trudeau government is giving the Alberta government a passing grade for its industrial carbon tax.

A Canada Ecofiscal Commission report says quadrupling the price, from the planned $50 a tonne in 2022 to $210 in 2030, would be enough to meet that goal.

In a letter to Prime Minister Justin Trudeau, Scheer surmises the new standards could increase the cost of gas by at least four cents a litre over and above the government's carbon tax.

The Court of Appeal heard arguments over four days in April, after the Progressive Conservative government challenged the levy.

Alberta Premier Jason Kenney has pledged to remove the province’s carbon tax by May 30. Once that happens, the federal backstop is expected to take its place. We look at which tax is easier on the average Albertan's pocketbook.

New Brunswick is now paying some of the highest gas taxes in the country.

Chief Justice Robert Richards ruled that establishing minimum national standards for a price on greenhouse gas emissions falls under federal jurisdiction.

Conservative politicians need to do more than simply oppose carbon taxes, Tasha Kheiriddin says.