|Vehicles with electric drivetrains will likely replace internal combustion engine vehicles in the future. Electric vehicles (EVs) powered by batteries and gasoline-powered generators (hybrids) are already available. These vehicles are appropriate for many tasks and, especially in the case of battery powered EVs, result in a substantial reduction in CO2 emissions. Fuel cell vehicles powered by hydrogen are even better and are just beginning to become available. The only emission from these vehicles is water!
Chicago, Illinois is operating three transit buses that are powered solely by hydrogen fuel cells.