The end goal should include a carbon capture step. They’ve looked into that here in Oslo, Norway, but it ended up much costlier than anticipated and at the moment it looks like it’s going to be very very drawn out.
Carbon capture at the source is usually not that terrible of an idea. Trying to capture carbon from the air around us is very challenging, but if the air is 80% CO2 to begin with it’s going to be much cheaper to capture half of it then trying to capture the same amount from regular air.
I heard that a good way to capture carbon on a bigger scale would be through burning trees and capturing the carbon. Store the carbon in a concentrated form, use the heat to produce electricity and when you chop down trees to burn you also make space for growing new trees. Sounds kinda slow though, and not exactly cheap either.