Stephen Harper’s two challengers for prime minister have regularly taken swipes at him during Canada’s election campaign for failing to get oil pipelines built. Harper, a Conservative who represents a Calgary constituency, is regarded as one of the most petroleum-friendly politicians in Canada. Therein lies the problem, according to his opponents. How to start up new pipelines is a major preoccupation for a Canadian oil industry increasingly worried about getting product to market. The troubled Keystone XL project is just one of four proposals mired in delay due to concerns over carbon emissions from the oil sands and potential spills. “He hasn’t got pipelines built. He has made the oil sands an international pariah,” Liberal Leader Justin Trudeau said of Harper during a leaders debate on the economy last week that happened to be held in hard-hit Calgary. “Under Stephen Harper’s stewardship,” New Democratic Party Leader Tom Mulcair said, […]