In Port Talbot, a metropolis of about 35,000 folks, residents have already seen firms go away, together with the loss of a Ford engine plant in close by Bridgend in 2020. Scrap usually comes with impurities, and union officials say the resulting metal may fail to fulfill the specifications of essential customers like automakers. Electric furnaces — the dominant steel-making know-how within the United States — are unquestionably cleaner than blast furnaces, however there are doubts, together with about whether or not enough scrap shall be available in Britain to feed the machine. The planned £1.25 billion investment at Port…