You are right that getting every last mole of Co2 in a controlled manner is doomed, but fortunately that is not required. What you really want is for net emissi

You are right that getting every last mole of Co2 in a controlled manner is doomed, but fortunately that is not required. What you really want is for net emissions to go to zero or even negative. If you are just pulling Co2 out of flue gas, that's very difficult (without BECCS, which is a separate thing). However, Direct Air Capture is also economical at some price point (optimistically around $130/ton). At that point, you don't have to nab every last mole of Co2 that the oil companies pump up because you can always pull it back out of the air. You just need a profitable market to make it economical to spend that money.