Alstom

World's First Hydrogen-Powered Trains on Tracks in Germany

According to Alstom, trains' French parent company, they are "Equipped with fuel cells which convert hydrogen and oxygen into electricity, thus eliminating pollutant emissions related to propulsion." The trains, which promise a low-noise trip, can hit speeds up to 140 km/hr, or 86.9 MPH. They'll run on 100 kilometers (62 miles) of track.