US environmentalists are targeting natural gas - fired power plants , which currently provide around a third of America ’s power , as use of coal fuel . To continue, please click the box below to let us know you're not a robot. Coal has already borne the brunt of environmental pressure , but natural gas is likely to be next , according to Robert Murray , chief executive officer of mining firm Murray Energy . Green organisations have previously advocated for the use of natural gas as a " bridge fuel " , or transitional energy source in the process of development . However , the gas industry produced more emissions in the US than coal for the first time last year , according to Bloomberg New Energy Finance .
US environmentalists are targeting natural gas - fired power plants , which currently provide around a third of America ’s power , as use of coal fuel . Coal has already borne the brunt of environmental pressure , but natural gas is likely to be next , according to Robert Murray , chief executive officer of mining firm Murray Energy . Green organisations have previously advocated for the use of natural gas as a " bridge fuel " , or transitional energy source in the process of development . However , the gas industry produced more emissions in the US than coal for the first time last year , according to Bloomberg New Energy Finance .