Canada’s image at the world’s signature climate negotiations could be complicated by infighting, some observers fear, as two of the federal government’s ardent critics at the provincial level look to capture attention at the United Nations climate summit known as COP28.

The Conservatives dialed up the pressure on the Senate on Tuesday to vote in favour of a carbon-pricing bill, all the while accusing the Liberals of trying to intimidate senators into delaying the bill.

Well before Alberta Premier Danielle Smith started talking about the Sovereignty Act, Ottawa was already taking steps to address the province’s concerns about being forced to prematurely shut down its natural gas power plants, says federal Energy Minister Jonathan Wilkinson.