Emission-free car fuel made from air and water

[auroraglacialis]

Originally Posted by Clarke

The main problem with electric cars is the energy density of the "fuel" tank, which this neatly circumvents, having the same energy density as conventional fuel. Also, it's easier to upgrade the synthesis infrastructure than it is to upgrade every single one of millions of cars.

Thats the main TECHNICAL problem, yes.
The real problem is that there are too many cars and that the oil is toxic and that the exhaust fumes are toxic and that an oil economy needs pipelines and gas stations and the lot. And too many cars are also the reson for this:

The issue being that your power requirements have just increased hugely.

It is crazy to keep up this consumption. And every such technological "improvement" seems to do mainly one thing: Consume more energy

CO2 is not the only issue - oil has many more problems and personal automobiles are just incredibly wasteful.