What is their complaint about natural gas? It burns clean and is relatively cheap to produce. Eventually it will probably replace even clean coal in our energy mix.
Are they cutting off their energy sources to spite their human adaptation to a modern society.??
But fugitive releases of methane are the really killer for NG. Methane is a terribly potent greenhouse gas. Its residence time in the atmosphere is less than CO2 but during the time it is out there it does between 30 to 70 times more damage to the ozone layer than CO2 on a per molecule basis. The Aliso Canyon (Porter Ranch) gas leak in CA wiped out all of the "gains" made by CA using windmills, solar panels, hamster wheels, pixie dust, and pagan rituals to offset use of carbon fuels