There are many designs or cars that run on water, but the petrochemical companies buy up all the inventions so as they can still sell crude oil...They have known about it for decades and just buy up every new patent ...plus if we stop using crude oil/coal for plastics ,how will we be able to continue to pollute all the oceans of the world for free... ....????
Some countries, including the UK and Norway, are trying to head that way by banning sales of new i.c.-engine cars after a certain time in the fairly near future (2040, in Britain).
What the Government's not said is how all the electricity for all the replacement electric cars' batteries will be generated in anything like the necessary amount... Nor anything about the genuine, full environmental equation of replacing conventional vehicles with all-electric.
Maybe it's because as I suspect, most politicians and certainly the most rabid "green" campaigners, barely understand the terms "fuel", "energy" and "power", and the differences between them; and like many people now, have a very poor grasp of basic science and engineering generally.
Such moves are all well and good, and certainly well-intentioned, but I don't think anyone paid to do so and act accordingly, has really thought it all through.