Even if there is no carbon price, the idea could work if - and that's a rather big if - the cost of making "oil" from air with CO2 and water can be made low eno

Even if there is no carbon price, the idea could work if - and that's a rather big if - the cost of making "oil" from air with CO2 and water can be made low enough. We might look into energy efficiencies along the process and into energy efficiencies to make those energy efficient components of the factory. Yes, it's far from closing economically or even energetically today. Will it always be so? However, another aspect seems to worth attention here. It seems rather inefficient first to have cars which make CO2, release it into - rather big - atmosphere, then spend efforts to capture CO2 from that. But this approach - let's pump all the air of the planet through purification devices - allows to do other things, not only capture CO2. How about extracting noble gases (it's already done, AFAIK)? Or other greenhouse gases, like methane? Or ozone-destroying substances? May be we can engineer our atmosphere to our tastes? May be we can use those technologies elsewhere - say, on Venus?