U.S. Energy Information Administration (EIA) reported 2016 data suggest that 63 percent of energy-related carbon emissions reduction can be credited to the utilization of clearner-burning natural gas for electricity generation.

It said: “Of this total, 2,007 MMmt can be attributed to the shift in fossil fuels to natural gas, and 1,169 MMmt can be attributed to the increase in non-fossil generation sources.”