While hydrogen-powered cars might be falling to the wayside in favor of electric alternatives, trains covering long distances might hop on the hydrogen trend. French train manufacturer Alstom has recently unveiled the Coradia iLint, a new train free of carbon dioxide emissions thanks to its hydrogen fuel cells. Even with diesel-powered trains, traveling by rail is seen as a greener alternative compared to flying or commuting by car. Studies have been boasting that trains cut greenhouse emissions by 90 percent...