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Ottawa has long said that it would enforce a minimum price on carbon in any province that does not do so itself by 2019. In October, the environment minister released the details of its so-called carbon “backstop,” which will be applied in the provinces of Saskatchewan, Manitoba, Ontario and New Brunswick, where no carbon tax is currently in place. Jason Kenney, leader of the opposition United Conservative Party in Alberta, has also vowed to remove various climate policies if he wins the upcoming provincial election, which would further weaken Ottawa’s bid to enforce an economy-wide carbon tax across the country.

Photo by Tijana Martin/The Canadian Press

Phillips said he was “hopeful” McKenna and Trudeau would accept Ontario’s climate policy and also said he hoped that the “dogma about having a carbon tax won’t be as important” if the province can successfully meet its environmental targets.

Ontario lowered its commitments to reduce greenhouse gas emissions as part of its plan Thursday. The province now aims to reduce its carbon footprint 18 megatonnes by 2030, or 30 per cent below 2005 emissions. That is lower than the 37 per cent reduction under the previous provincial government, but is still in line with federal and international goals.

Few details were provided under the Ontario plan as to how the province will reduce emissions. The reduction is mostly expected to come through various regulations that target heavy emitters, rather than a consumer tax that would raise the costs of heating homes or filling up at the pump.