Pilot “methanation” plants are already producing synthetic methane from hydrogen and CO2: https://www.uniper.energy/news/methanation-plant-in-falkenhagen-start

Pilot “methanation” plants are already producing synthetic methane from hydrogen and CO2: https://www.uniper.energy/news/methanation-plant-in-falkenhagen-starts-operation-and-supplies-synthetic-methane--another-step-towards-a-successful-energy-transition/ https://www.uniper.energy/news/methanation-plant-in-falkenha...