Synthetic Fuels

The claim made at left is total BS.  It’s not that synthetic fuels aren’t possible, rather that:

1) The concentration of CO2 in our atmosphere is about 400 PPM, or about 0.04%, meaning that the other 99.96% is something else (mostly nitrogen).  For this idea to have any merit, it needs point sources of CO2, e.g., coal plants or concrete manufacturing facilities, where concentrations are north of 30%.

2) The chemical reactions required for this concept are hugely endothermic, meaning that they need enormous quantities of energy; a solar panel is a million miles away from getting the job done.