Troy Shantz/CP Prime Minister Justin Trudeau greets spectators in Windsor, Ont. on Oct. 5, 2018.

Weeks after suggesting he was ready to fight the next federal election on carbon pricing, Prime Minister Justin Trudeau gave a preview of the argument he may take with him on the campaign trail. "I think people need to ask folks who are refusing to fight climate change, refusing to put a real plan on the board, why they aren't thinking about future generations," Trudeau said at an event in Windsor, Ont. Friday. "Why they aren't committed to being part of one of the most important economic and social challenges... of our time." Watch: McKenna bemoans Manitoba's 'flip flop'

Trudeau was asked about Manitoba Premier Brian Pallister's decision to scrap a planned carbon tax of $25-per-tonne in the province. Pallister has said he abandoned the plan because Trudeau refused to budge that the price must rise to $50 a tonne by 2022. The about-face put wind in the sails of federal Conservatives who oppose the plan and premiers who are fighting Ottawa's demand that they put a price on carbon emissions, either through a tax or cap-and-trade system. The federal government has said it will impose a carbon tax on any province and territory without a suitable plan, starting on Jan. 1 at $20 per tonne and rising $10 per year until 2022. "It's unfortunate to see that there are still politicians, Conservative politicians specifically across the country, who still think pollution should be free," Trudeau said. More from HuffPost Canada: Manitoba Delivers Another Blow To Trudeau's Carbon Tax Plan

Trudeau Shows Willingness To Fight 2019 Election Defending Carbon Tax

Majority Of Canadians Say Provinces, Not Federal Government, Should Decide On Carbon Pricing: Poll Calling climate change an urgent threat, Trudeau said wildfires, floods, and extreme weather are becoming more common and more costly. The prime minister reiterated his government would prefer to work in "partnership" with provinces. "But if, as we've seen, a number of people don't want to fight climate change, don't have a concrete plan to do that, Canadians are counting on the federal government to do just that," he said. "We will be moving forward with putting a price on pollution to ensure that we are protecting our children's future, creating the economies that will be successful long into the coming decades." While conservative provincial premiers such as Saskatchewan's Scott Moe and Ontario's Doug Ford are leading the charge against the plan, the Liberal premier of Prince Edward Island recently submitted a plan for federal review that did not include a carbon tax.

Liam Richards/CP Ontario Premier Doug Ford speaks as Saskatchewan Premier Scott Moe listens during a media event in Saskatoon on Oct. 4, 2018.