Canadian Prime Minister Justin Trudeau on Tuesday said he would press ahead with plans to impose a carbon tax on provinces unwilling to combat climate change despite resistance in voter-rich parts of the country. Starting in April 2019 carbon pollution will initially cost C$20 ($15.27) a tonne, rising by C$10 a year until it reaches C$50 in 2022. "The effects of climate change are everywhere, and they are a constant reminder of the need to act now," he said in a statement, citing recent heat waves, floods and forest fires. Official data regularly show Canada has little chance of meeting its climate change goals of reducing emissions by 30 percent from 2005 levels by 2030