US shale gas boom having knock-on effect in North America 's , despite CNN environmental policies . This will set a price for carbon that is higher than in the European trading scheme , and so entail much higher costs for coal-burners . Fracking revolution pushed down US natural gas prices , leading electricity generators to switch from coal . U.S. coal has displaced more expensive gas in Europe as feedstock for power stations . Experts believe coal 's American revival will be shortlived .
US shale gas boom having knock-on effect in North America 's , despite CNN environmental policies . Fracking revolution pushed down US natural gas prices , leading electricity generators to switch from coal . U.S. coal has displaced more expensive gas in Europe as feedstock for power stations . Experts believe coal 's American revival will be shortlived .