Is there any real chance for carbon capture to be beneficial to the environment?

The rapid application of carbon capture and storage (CCS) is a much heralded means to tackle emissions from both existing and future sources that, however, simply may not deliver the expected benefits. Apart from some doubts about the efficacy of the geological storage, the present stall in deploying carbon capture and storage (no fossil-fuel power plants, the greatest source of carbon dioxide emissions, are presently using carbon capture and storage, and publicly supported demonstration programmes are struggling to deliver actual projects) is due to the simple fact that the move to carbon capture and storage would have considerable additional costs for the economy and the environment that would very likely offset all the benefits.