2 provincial courts sided with Trudeau’s carbon tax — what happens next?

Ontario’s top court ruled Friday that the federal carbon tax doesn’t overstep provincial jurisdiction — and the decision could have ramifications on the rest of Canada.

Nathalie Chalifour, a law professor at the University of Ottawa, told Global News that the ruling will send a message to other provinces.

Ontario had argued that the tax undermines co-operative federalism by allowing Ottawa to step into areas of provincial authority. Meanwhile, the federal government said it has the power to put a price on pollution because greenhouse gas emissions are a national concern.