No, that doesn’t seem like a useful way to look at it. The old methane break down into CO2 regardless of our current emissions. Our choices now affect future e

No, that doesn’t seem like a useful way to look at it. The old methane break down into CO2 regardless of our current emissions. Our choices now affect future emissions of methane, the effects of which are essentially independent of the past methane release. Finding a consistent yardstick (methane = 30x CO2) seems better than pretending it’s not a problem just because there’s some delayed negative feedback loops already in play.