Canadian Press: Stephane Dion’s risky proposal to impose a carbon tax hasn’t rocketed the Liberal party to the top of Canada’s political charts, but it does seem to have given the leader’s image a much-needed boost. During a swing through eastern Ontario last week to sell his “green shift,” Dion met with criticism from farmers and truckers who fear a carbon tax on diesel fuel will put them out of business, notwithstanding the offsetting tax cuts and tax benefits the Liberal leader is …