> over the course of a century carbon dioxide is far worse. Note that the methane molecule isn't removed from the atmosphere after it's "residency time", it ox

> over the course of a century carbon dioxide is far worse. Note that the methane molecule isn't removed from the atmosphere after it's "residency time", it oxidises into CO2 and water vapour. i.e. a Methane molecule causes much more warming over a short timescale, but measured over millenia it's about the same as CO2. Also - over 100 years the global warming potential (GWP) of methane is 28-36x that of CO2. https://www.epa.gov/ghgemissions/understanding-global-warming-potentials https://www.epa.gov/ghgemissions/understanding-global-warmin...