Right now people are getting fuel by pulling stored carbon out of the ground and burning it, increasing the net CO2 in the atmosphere.<p>If a system like this worked, the level of CO2 would stay constant rather than increasing because you&#x27;re recirculating carbon which was already in the atmosphere.<p>That&#x27;s still not as good as actually pulling carbon out but if they can make the numbers work, it&#x27;s to see how that&#x27;s not a noteworthy improvement.