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The ability to turn CO2 into fuel at a cost comparable to a gallon of gasoline would render fossil fuels obsolete.

1. Does this "fuel" actually meet any known engineering standards? (Probably not.)

2. Can this process actually create the vast amounts of this "fuel" necessary to power an industrial society? (Probably not, since CO2 is a trace gas, representing only 0.04% of the atmosphere by volume, however...)

3. If the answer to No. 2 is "Yes," then might we expect, at some point, a deficit of atmospheric CO2, thus rendering life on earth impossible to due insufficient concentrations to support plant life?

If this system works as advertised, it appears that we now have our candidate for the next environmental boogeyman, capable of replacing the IC engine and the air conditioner.