He says it makes no sense to do it, because not only are you basically using twice the energy to get it back down, often using energy made from fossil fuels to begin with, you then also have to tackle storage and that’s nearly impossible at the scale we need to take it out of the atmosphere. Any use case, such as green houses and whatnot don’t help, because they put the CO2 straight back into the atmosphere with a bit of a delay, same with trees.

Which makes it a futile exercise. It’s basically gold plated HDMI cables. Sure it works, but it makes no sense whatsoever, because it doesn’t do what it claims to do.