I’d be interested if you have anything on this. If it’s just a hunch it’s as reliable as some models anymore!
I’ve probably shared with you that I keep an eye on methane via ESRL GMD, where I haven’t seen a noticeable acceleration in the methane trend at northern stations (but oddly, I do see one in the methane trend at Mauna Loa). Knowing what that means is far beyond my paygrade.
So far, the methane I’m worried about is land-based (thawing permafrost). Underwater, things get hela complicated. I saw discussion of how the dearth or lack of marine micro-organisms makes a difference in how many bubbles reach the atmosphere (bugs eat the methane on the way up).