CCS (Carbon Capture and Storage) has the potential to reduce power station CO2 emissions considerably, but is only practicable if there's somewhere reasonably close at hand to store the captured CO2. Usually that would be a depleted natural gas field. Where no such options are available, CCS is not really an option. Transporting captured CO2 long distances to a suitable facility is problematic, as high pressure dense phase CO2 is extremely hazardous in the event of a leak from a pipeline.