Even in a frequently fogbound port city along the Atlantic Ocean, the billowing clouds of steam rising from Canada’s largest oil refinery over Saint John, New Brunswick, are impossible to miss. On a ridge overlooking the refinery sit six enormous…

Even in a frequently fogbound port city along the Atlantic Ocean, the billowing clouds of steam rising from Canada’s largest oil refinery over Saint John, New Brunswick, are impossible to miss. On a ridge overlooking the refinery sit six enormous…