Carbon pricing is the government's main measure to reduce the country's greenhouse gas emissions. It must increase from 65 to 80 Canadian dollars per tonne (45 to 55 euros) on April 1.

Seven provinces have asked to suspend or cancel the increase. Some 40% of Canadians now want the carbon tax to be abolished, compared to just 27% who believe it should increase as planned. Canada, which due to its geographical location is warming faster than the rest of the planet, has been confronted with extreme weather events.