If we haven’t fired the clathrate gun already, I’m personally convinced it is inevitable in the next ~decade. Practically no one I talk to, who are generally concerned about climate change, have the same fear I do about the clathrate gun and most just point to the Wikipedia article downplaying it as “proof” it isn’t a big deal. While it is super depressing to think we have already lost the climate change battle, intelligent people keeping their heads in the sand and not seriously looking at what the next steps are assuming the clathrate gun has already fired are doing a huge disservice to humanity. Absolutely none of the 2030/2050/2100 climate change measures are taking this into account and it is mind boggling to me.
Note the "current outlook" section, where the TL;DR: is that this is not happening and there is pretty good reason to believe it won't over predictable time-frames.
https://en.wikipedia.org/wiki/Clathrate_gun_hypothesis