Yes, you are right. I have conveyed my point only half-way and I apologize.
What I meant is that methane is known to have a bigger heating effect than other greenhouse gases, like x28 that of CO2 if I recall correctly. This is used as part of the anti-ruminant argument, when comparing the effect of methane expelled by animals to the rest of greenhouse gas emissions.
However, if you take into account the reduced lifespan, that 28-time increase is definitely less relevant.
What I meant is that methane is known to have a bigger heating effect than other greenhouse gases, like x28 that of CO2 if I recall correctly. This is used as part of the anti-ruminant argument, when comparing the effect of methane expelled by animals to the rest of greenhouse gas emissions.
However, if you take into account the reduced lifespan, that 28-time increase is definitely less relevant.