There is a reason industrial civilization has put quadrillions of tons of CO2 into the atmosphere, but taken very little out: It's profitable to emit carbon, an

There is a reason industrial civilization has put quadrillions of tons of CO2 into the atmosphere, but taken very little out: It's profitable to emit carbon, and expensive to take it out of the air. You can absolutely take CO2 out of the air and produce useful output. It's physically possible, no problem. It's not at all profitable, though. Not much reason to produce synthetic gasoline at $20 a gallon when you can make it from fossil petroleum for $3 a gallon. This is why global warming mitigation efforts have focused on reducing emissions instead of carbon capture.