Enviros are crying foul that Massachusetts Gov. Paul Cellucci (R) is considering gutting pollution limits for the state’s dirtiest power plants. To great fanfare last May, Cellucci announced a plan under which the plants would have to halve their emissions within three years. But an anonymous source in his administration told the Boston Globe that Cellucci may cave on the plan under pressure from plant owners who claim that tougher rules may bring about a California-like energy crisis in Massachusetts.