eli5: Why isn’t carbon capture used at emission sources?

Question

I know that there is ‘legacy carbon’ in the atmosphere that needs to get removed but why aren’t we leveraging carbon capture as part of industrial processes (e.g. at the factory’s smoke stack, for example). Or maybe we are already?

In: 54

Answer 1

It’s actually done. There are experiments to remove CO² at the exhaust. For example with MEA and I think alkali scrubbers also. But it’s not yet left the experimental stage.