To make fuel, you need a carbon chain with hydrogen clustered along its length. Hydrogen in the water molecules can be teased loose with electric charge, a technology that's been around for ages. It turns out there's also a lot of carbon in the ocean water, about 100 times as much as in the air. 2/3 of it is dissolved C02 gas and 1/3 is tiny specks of carbonate. 92% of this carbon is teased out with an "innovative and proprietary NRL electrolytic exchange module" (NRL thingy). The next two steps coax it into carbon chains and clothe the chains in a hydrogen skin. That's what all fuels, oils and waxes are made from, depending on length. This tech has been around for quite a while too. The process is nearly pollution free.
Green has to love it. Power-to-the-people has to love it because a scarce resource becomes everywhere commonplace. I'd like to make and sell fuel by the sea with a hose running down the beach to the well. If the economies of $3 to $6/gallon can only be achieved in a large plant, this will still free up some countries. The picture of the E-CEM Carbon Capture Skid at the link looks like it would fit in a small building, even when scaled up.
Nations get along better when they are not too beholden to one another.
|Model airplane being fueled from the sea|
with a few clever intervening steps.