Different rulings from courts on the federal government's carbon tax are a result of judges working through a section of the Constitution that is seldom used, say legal experts.

In a 4-1 majority decision, the Alberta Court of Appeal has deemed the federal Liberals' carbon tax to be unconstitutional.

Alberta Premier Jason Kenney says he hopes to see concrete action in short order after meeting today with Deputy Prime Minister Chrystia Freeland.

"We know what Albertans don't want," Justice Minister Doug Schweitzer said. "We've heard them loud and clear."

Albertans will be seeing a rise in prices at the pump this week, as the federal government's carbon tax comes into effect with the dawning of the new decade.

The federal carbon tax is set to take effect on Alberta consumers on Jan. 1, imposing a $30-per-tonne charge on gasoline, diesel, propane and natural gas.

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

The recent credit rating downgrade, premiers meeting, firing of the election commissioner and rural policing were all on Jason Kenney's mind in a conversation with Danielle Smith.

The Saskatchewan Government has said the carbon tax is killing jobs, but one expert says job losses in the energy sector are not the result of any sole factor, but a confluence of different issues.

Some experts say not enough time has passed and not enough research has been done to know what impact federal carbon pricing is having on jobs.