Thanks for this comment - it sent me down an interesting rabbit hole. Sure enough - oil is approximately 85% carbon by mass. A barrel of oil weighs around 140k

Thanks for this comment - it sent me down an interesting rabbit hole. Sure enough - oil is approximately 85% carbon by mass. A barrel of oil weighs around 140kg, and so contains about 120kg of carbon. Carbon dioxide is 27% carbon by mass, so that barrel of oil, when oxidized, will end up as 440kg of CO2. So 1 tonne of CO2 is 2.3 barrels of oil, which would cost you.... under $30 For comparison, to sequester it after burning would cost probably closer to $100 [1] I guess this is a long winded way to say that an ounce of prevention is worth a pound of cure. [1] https://energypost.eu/10-carbon-capture-methods-compared-costs-scalability-permanence-cleanness/ https://energypost.eu/10-carbon-capture-methods-compared-cos...