>> Ideally, there'd be a market with buyers (capturers) and sellers (emitters) (with a negative price, so cash flows from seller to buyer, obviously) for carbon

>> Ideally, there'd be a market with buyers (capturers) and sellers (emitters) (with a negative price, so cash flows from seller to buyer, obviously) for carbon emissions where the price depends on the actual underlying cost of capture, but that will hopefully come in the future, when carbon capture is commercially viable These carbon permits (also called EUAs) are tradeable as futures and are highly liquid on the ICE exchange. There are even a bunch of ETFs, KRBN being the biggest and highest volume.