One of the better ideas yet on the entire hydrogen question. Really. Not seeing much to dispute here. I've spent a lot of hours myself thinking about this, and the best I could come up with was using pure unobtanium nano-alloy hydrogen storage tanks and generating the hydrogen from massive windpower and water. Formic acid...memory circuits kicking in...oh noes....Them! Giant ants from nuke testing... Breed giant ants then grind them up for fuel....patent....hmmm...ants crossed with elephant genes.... hmmm raised floating so they don't collapse from their own weight....

I need more coffee, or less coffee, this level is a little off..

With that said, going to the mild hydrogen boost model for conventional engines is still gathering interest. Dang if I am gonna drop over a thousand bucks to buy a model of it though.. I was just reading a a farm mag about some device that uses pure water and alternator energy and just injects smallish amounts of the hydrogen into the intake, supposedly it so much helps the efficiency of the burn it offsets the energy requirements of running the alternator under heavy load for the running electrolysis dealie. Allegedly, supposedly, what they claim, their MMV, and etc. Straight, no, couldn't possibly work, perpetual motion stuff, but they claim the small amounts just make the chemical reaction much better. It still gives me the willies though thinking it might work..just doesn't seem possible. But I don't know either. For the money and simplicity, just what joe average or below average wallet could maybe come up with, I think right now state of the art for alternative transportation (outside of making your own biofuels) is from a century ago, normal electric motors, cheap as can be lead acid batteries, and adjust your lifestyle and driving accordingly. They got cheap electric scooters now with claimed 20-30 mile range for like two hundred dollars to around a grand for deluxe models (I was window shopping scoooters and mopeds today, gas or electric). Adjust up for a simple car or light duty truck. It's coming, and from China, this stuff will be hitting *real dang soon* now. At hundred grand, there is a market for Teslas, at ten grand, there is a HUGE market for a simple commuter car and light duty small pickup with zero frills, just basic transpo. For me, forty miles on a charge is the sweetspot, because to town and back is around 30-32 depending on which stores I hit, meaning I wouldn't be beating on the batteries so they would last. Throw in some solar panels so eventually you are getting more or less free electricity. And don't ever, never, run your batts low, shallow cycling rules there. Anyway, I am being given an older but still functional electric floor sweeper (no batteries though, long gone), the ride on kind. We'll see what I can do with the parts.

 They can still exhaust the CO2 to the atmosphere and still be carbon neutral - thats what the

"Because formic acid can be generated catalytically from CO₂ and biomass-derived hydrogen, the cycle is CO₂ neutral in principle." 

means. As long as the process used to make the formic acid uses atmospheric CO2 and doesn't use a bunch of fossil fuel energy. This is somewhat old news as I recall. It is similar to using methanol in fuel cells, but safer.

(ed. wowbagger) I must have been editing at exactly the same time as the previous poster....