Like a mirage rushing throughout the dusty desert outdoors Pueblo, Colorado, the primary hydrogen-fuel-cell passenger train in the USA is getting warmed up on its check observe. It’s going to quickly be shipped to Southern California, the place it’s slated to hold riders on San Bernardino County’s Arrow commuter rail service earlier than the tip of the yr.

The finest method to decarbonize railroads is the topic of rising debate amongst regulators, trade, and activists. The debate is partly technological, revolving round whether or not hydrogen gasoline cells, batteries, or overhead electrical wires provide one of the best efficiency for various railroad conditions. However it’s additionally political: a query of the extent to which decarbonization can, or ought to, usher in a broader transformation of rail transportation.

Within the insular world of railroading, this hydrogen-powered train is a Rorschach check. To some, it represents the way forward for rail transportation. To others, it appears to be like like a giant, shiny distraction. Learn the total story.

—Benjamin Schneider

This story is for subscribers solely, and is from the following journal situation of MIT Know-how Evaluate, set to go dwell on April 24, on the theme of Construct. For those who don’t already, join now to get a replica when it lands.

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