>To make a kg of hydrocarbon you need to process an awful lot of air to get enough CO2 Thinking laterally, instead of processing a lot of air, can't we just en

>To make a kg of hydrocarbon you need to process an awful lot of air to get enough CO2 Thinking laterally, instead of processing a lot of air, can't we just engineer a gaseous molecule that is good at capturing CO2 and can precipitate conditionally. Imagine something like a buckyball that would let in a CO2 molecule. While it's sufficiently hot it stays under its gaseous form. Then once cold it falls to the ground. You then release a lot of this engineered molecule in the atmosphere where it will come into contact and absorb the CO2 then fall to the ground where you can collect it efficiently by scrubbing it of surfaces like soot for processing and recycling. If it is bio-safe and sufficiently stable you can even let it accumulate naturally in the water where you will retrieve it even more efficiently once it's concentrated enough. That's what we do in Rouen now and everyone is fine with it /s.