Reid Frazier / The Allegheny Front President Biden is selling the climate friendly aspects of his $2 trillion infrastructure plan as a chance to create good-paying union jobs. But at a local branch of one of the country's oldest unions, there are doubts that dealing with climate change will be good for workers here, in the oil-and-gas state of Pennsylvania. Boilermakers Local 154 in Pittsburgh builds and maintains coal, natural gas and nuclear power plants. During a training session, a handful of members practice welding behind a thick blue safety curtain, part of preparations to repa...