Methane decomposes into CO2 over centuries. So CO2's atmospheric forcing is a constant over time, while methane forcing starts 100s of times worse but decays ov

Methane decomposes into CO2 over centuries. So CO2's atmospheric forcing is a constant over time, while methane forcing starts 100s of times worse but decays over time. Over 100 years the forcing is on average about 30x higher, over 20 years on average about 84x higher[1]. [1] https://unece.org/challenge https://unece.org/challenge