> You do realize that removing CO2 will require massively more energy than what went into adding it to the atmosphere, right? The reaction of CO2 with silicate

> You do realize that removing CO2 will require massively more energy than what went into adding it to the atmosphere, right? The reaction of CO2 with silicate rocks that pulls CO2 out of the atmosphere naturally (and is why the Earth is not like Venus with 90 bar of CO2 in the atmosphere) is exothermic. So, the energy needed is not just not large, it could even be negative.