It appears there are increased rumblings that the Conservative Party under Erin O’Toole may be contemplating a flip-flop on the carbon tax, moving from opposing Trudeau’s tax hikes to supporting them. “There are growing concerns within the federal Conservative caucus that leader Erin O’Toole will move the party towards accepting a carbon tax, the Star has learned. O’Toole has promised a robust climate policy, and has embraced the Liberals’ goal of net zero emissions by 2050. O’Toole has ruled out maintaining the Liberal government’s existing carbon tax. But multiple sources told the Star that Conservative MPs are in the dark about how the party will actually achieve that net-zero goal without introducing carbon pricing — a policy that has been long vilified by the Conservatives. “It’s widespread,” said one party source, when asked about concerns among Conservative MPs that O’Toole will pitch a carbon-pricing scheme.