
A team of researchers and engineers plan to retool this 1937 steam-engine locomotive to run on clean-burning, carbon-neutral biocoal.
The image of trains used to include pictures of sooty firemen shoveling coal into glowing hot fireboxes.
Today, scenes like that are relegated to railroad museums and steampunk fantasies, as diesel-electric trains long ago became the standard.
But Davidson Ward thinks steam engines may still have a place in the 21st century.
Ward is a co-founder of Sustainable Rail International, a nonprofit that recently partnered with the University of Minnesota to retrofit a 1937 steam locomotive to run on a carbon-neutral coal made from biomass.
“It’s relatively radical in the rail industry in the United States to say that steam engines might be a logical way to go,” Ward said.





