they do make them, they are not as cheap or easy to use as the guy says. not ready for real use... but a step forward.  we can chemically create gas in a basic lab environment with natural chemicals.... but the energy cost to make it is extremely high (like $40/gallon), but it would be a 90% cleaner process. when fusdion energy is a reality, it will unlock things like this that can be done, but need a lot of energy to do it.
United States