Navy Turns Sea Water into Jet Fuel

Where does the energy come from, with which this conversion is effected?

I think this will have to be a nuclear powered process....

http://www.newscientist.com/article/dn17632-how-to-turn-seawater-into-jet-fuel.html

Where's the H in CO₂? H₂ catalytically converted?

I think the two are joined via catalyst to make hydrocarbons. Otherwise it doesn't make any sense.

You fission the Carbon into 6 Hydrogen atoms and the Oxygen into 8 hydrogen atoms

HHO powered warships?

From the article: "NRL is working to optimize the process and scale it up - but says that initial studies predict a cost of $3 to $6 for fuel produced this way."

The 'fuel' is JP-5. Not a whole lot different than petrol, no?

This article raises a whole lotta questions....

Why so late in the game? It's not like we're just now needing this, so where's this research been all this time? And why only the Navy's NRL doing it?

Doesn't Exxon, Mobil, Chevron, Texaco, Shell, BP, et cetera, et cetera know about catalysts and hydrocarbon synthesis? Where have they been all this time? What? No access to CO2-laden seawater? If it weren't for the oceans buffering atmospheric CO2, this planet would be in much worse shape than it already is. As this process recycles the CO2 already there, synthesizing fuels from this CO2 does not add more to the total carbon budget - it just moves it around.

Why now? Why so very, very late in the game?