I just did the math and you are right: burning enough natural gas to release 1kg of CO2 releases about 20 MJ of energy (but we can't capture all of it because s

I just did the math and you are right: burning enough natural gas to release 1kg of CO2 releases about 20 MJ of energy (but we can't capture all of it because second principle of thermodynamics). Capturing 1kg of CO2 from the atmosphere with this method requires 1.3 MJ, so it's feasible. But then, what do you do with the captured CO2? We put about 35 gigatons of CO2 in the air every year. Let's say we want to remove 15 of them, to get to the emissions level of 1980. 15 GT is staggering. For comparison, the world dumps about 2 GT of waste per year [1]. [1] https://www.theworldcounts.com/challenges/planet-earth/state-of-the-planet/world-waste-facts https://www.theworldcounts.com/challenges/planet-earth/state...