People have figured out carbon capture; people haven't figured out economical carbon capture at scale yet (except for reforestation, which only partially helps)

People have figured out carbon capture; people haven't figured out economical carbon capture at scale yet (except for reforestation, which only partially helps), and it feels like we're a long way off. If you want to incentivize the creation of CCS while still penalizing the externality (cost to society of a carbon intensive economy), you'd probably want to ratchet up something like a carbon tax, and then give a rebate for performing something like carbon capture. That might create the economies of scale needed.