But, we do have "technology" for direct carbon capture. Trees and plants. It will consume a lot of valuable real-estate, but we could plant a lot of plant life which would use carbon for growth.
There is just not enough will and to much economy incentives to not terraform earth.
Agreed, fossil energy sources add more climate gases to the eco balance. I suppose the original idea of "carbon capture" was to capture the excess and store it back under ground.