By Elizabeth Vargo The polar vortex is back with a vengeance—such a vengeance that Jack Gerard’s flight from Washington to Pittsburgh was one of many cancelled this past week.  Gerard, President of the American Petroleum Institute, was scheduled to speak at a policy luncheon on “America’s Energy Choice” hosted by the World Affairs Council of Pittsburgh.  Nonetheless, the winter weather didn’t keep Associate Director Joseph Leighton of the Pennsylvania division of API from stepping Read more [...]