Technologically, it is already possible to produce nonpolluting cars that burn hydrogen rather than gasoline  But the national system of fuel stations that would be needed to provide the hydrogen fuel for such cars does not yet exist  However, this infrastructure is likely to appear and grow rapidly
A century ago no fuel-distribution infrastructure existed for gasoline-powered vehicles, yet it quickly developed in response to consumer demand
The fuel-distribution infrastructure for hydrogen-powered cars is likely to appear and grow rapidly.