![Building on a 25-year relationship, Argonne and Progress Rail are working to lower the carbon intensity of the rail industry. (Caption and Progress Rail Photograph Courtesy of Argonne National Laboratory)](https://www.railwayage.com/wp-content/uploads/2023/03/Screen-Shot-2023-03-29-at-10.16.11-AM-315x168.png)
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Argonne, Progress Rail Testing Low-Carbon Fuels
Argonne scientists will test bio- and renewable diesel fuel on a locomotive combustion test engine.