It is.
One thing for sure, I would put bet money on the fossil fuel industry is figuring out how to capture and use this methane gas to burn as fuel which would probably heat up the climate.
Off-topic, my fear is deep frozen viruses that may come alive at some point of the defrost that we are not aware of nor prepared for.
It's such a big thing that it's difficult to grasp. The full impact of the realization that most of civilization will die off within 100-200 years may damage us if we don't have some kind of mental buffer.
It's very scary, even if our understanding is fragmented.