Comment there is a catch - more efficient coal (Score 1) 341
While most current coal power stations have 33% efficiency it is possible to make them 50%+ ( up to 57% efficient ) with the use of supercritical co2 turbines ( or 40-50% improvement of ratio energy/co2 ) see about this technology http://www.echogen.com/documents/TMISept_Oct12_000.pdf
with few percents of efficiency going into 70% capture of co2 ( which are noticeable with 33% efficiency but much less with 50% efficiency ) co2 capture turns to be quite feasible even for china