Claim: Methane is a primary component of natural gas, and its process inevitably releases a significant amount of methane into the atmosphere, and according to the EPA Inventory of U.S Greenhouse Gas Emissions and Sinks: 1990–2015 report, 2015 methane emissions from natural gas and petroleum systems totaled 6.5 Tg per year in the United States, and has a 20-year global warming potential of methane is 84, that is, over a 20-year period, it traps 84 times more heat per mass unit than carbon dioxide (CO2) and 32 times the effect when accounting for aerosol interactions.
Evidence: According to the EPA Inventory of U.S Greenhouse Gas Emissions and Sinks: 1990–2015 report, 2015 methane emissions from natural gas and petroleum systems totaled 8.1 Tg per year in the United States.