The Supreme Court of Canada has ruled that the carbon tax is constitutional.

The majority of the court came to the conclusion that the entirety of the tax is constitutional, and that the federal government has the jurisdiction to enact a carbon pricing law across Canada, as a matter of national concern.

This ruling paves the way for the federal government to raise the carbon tax to $50 per tonne next year, and to $170 per tonne by 2030.

In its decision, the supreme court noted that the climate crisis makes this an exceptional case.

Two justices, Russell Brown and Malcolm Rowe, dissented in the supreme court's ruling. Justice Suzanne Côté disagreed in part.