I'm puzzled that this should be produced without  dimensional analysis : 

Globlal annual  CO2 production from fossil fuel exceeeds  20 kilomoles per 
capita. 
Global lithium production last year  amounted to less than 1 mole per capita

Global  lithium reserves are on the order  of  1 kilomole per capita. 


The question will remain  theoretical until a  lithium produced from sea 
water hits the market at close to currrent prices, 

On Wednesday, August 9, 2017 at 5:57:38 PM UTC-4, E Durbrow wrote:
>
>
>
> If I understand this correctly, researchers have developed a way to take a 
> stream of pure CO2 and extract oxygen and carbon at very high efficiency. 
> At least according to the summary, ambient stream may be possible and 
> efficient. 
>
> summary: 
> https://phys.org/news/2017-08-battery-inspired-strategy-carbon-fixation.html
>
> P.S. I tried to find the abstract but could not get to it. Perhaps not out 
> yet. 
>
>
>

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