[irrational]

Isn’t it already happening? Is that what is creating the huge methane explosions and craters in Siberia?

[samiru]

Yes. Check the Yamal Peninsula in Google Maps and you realize this kind of cratering is a process that has been going on for thousands of years (since the ice age really!).

[knowaveragejoe]

The scary part is that it's accelerating in on a timescale that's relevant to our needs as a species.