Freight rails trying other locomotive fuels to cut emissions

FILE- A BNSF rail terminal worker monitors the departure of a freight train, Tuesday, June 15, 2021, in Galesburg, Ill. BNSF said Wednesday, Dec. 15, 2021, that it plans to test out a hydrogen-powered locomotive on its railroad lines as part of its plan to reduce its emissions. The industry is also experimenting with battery and natural gas powered locomotives although the freight railroads caution that the new technology is likely still several years away from any widespread use. (Shafkat Anowar/AP)