Water powerd cars will they eventually use up so much water then the planet will be runing out of water?

Question

i just saw a video on the internet about a japanese car that ran on water but i thout what happens to the water thats used will it create pollution or use up so much water that we will be in the same situation but this time with water? what do you think tell me if you know or i think what might happen

Answer 1

No idea how this makes sense.  The electrolysis of water takes a lot of energy.  The only way to get more energy from the hydrogen than you put in to get the hydrogen OUT of the water is by fusion.  I somehow doubt they have a cold fusion generator running in there...

anyhow, before I looked up this supposed water powered japanese ... thing, I had written another answer.  It's still relevant to other 'water powered cars' and also answers your concern about polution.

/begin old answer

Water is not the power source or the main product of these cars.  Electricity (from whatever source - green I hope) is used to electrolyse water, splitting it into hydrogen and oxygen.  The hydrogen is then used as fuel for the car, combining with oxygen from our atmosphere to create water again.

Therefore, water is the car's waste product, and the source for the hydrogen, but not used up or created by the process.

'Water power' isn't some fantasy power source, but simply a name for hydrogen powered vehicles that get their hydrogen from zapping water instead of burning natural gas.

/end old answer

Answer 2

Yes.  Anyone who disagrees or asks the wrong questions about this is in the pay of 'Big Water'.

Answer 3

It won't affect the planet's water supply in any way. When the car uses water, the water changes into water vapor, condense into a cloud, and precipitate right back down to earth.