I've been studying CO2 and 'global warming' a fair bit lately. As hard as it may be to believe, CO2 emissions don't really have an effect on increasing current global temperatures. Yes, Virginia there is a conspiracy going on, and it's related to the UN, and the Club of Rome depop programs.
I don't mean to be facetious here, but trees already do what this proposed high tech process is said to do (convert CO2 in to fuel) by sucking in CO2, growing and then getting chopped down for fuel.
After a week or so of studying various results, most people who are not too brainwashed can see that CO2 is not, and has never been a pollutant, and it is part of the natural carbon cycle on Earth. There's lots to read on this topic, which I encourage, there has been so much propaganda done on this topic it's insane.
The Global Warming Test