Methane decaying just means the atmospheric concentration doesn't increase as fast. But if you emit more than the previous year then levels will go up. And in

Methane decaying just means the atmospheric concentration doesn't increase as fast. But if you emit more than the previous year then levels will go up. And indeed, levels are currently 3 times what they were from pre-industrial levels [0]. The EPA says its Global Warming Potential over 100 years is 28-36 times CO2 [1]. 100 years sounds like a very relevant time period to me. [0] https://en.wikipedia.org/wiki/Atmospheric_methane#Patterns_of_methane_change_over_time https://en.wikipedia.org/wiki/Atmospheric_methane#Patterns_o... [1] https://www.epa.gov/ghgemissions/understanding-global-warming-potentials https://www.epa.gov/ghgemissions/understanding-global-warmin...