Make a functional version of this machine.

This solution is much better than trying to bury the carbon dioxide in the ground, or put it in the middle of the ocean.

Right now, the idea shows them concentrating CO2, taking it away from the atmosphere and then putting it into a greenhouse. Where the plant is supposed to take the CO2, add sunlight, keep the carbon and release the oxygen.

You can try and make algae grow, thereby giving some oils/etc for biofuel.  If this process becomes net energy positive that will be fantastic.  Maybe Branson will be able to support something that will cleanup the plastic islands floating in the gyres.