An intelligent friend found this argument about the climate crisis plausible

[orthoclad]

11. Methane blowholes in Siberia

dramatic positive feedback, from Siberian Times a few years ago:

More pictures here: https://siberiantimes.com/other/others/news/giant-new-50-metre-deep-crater-opens-up-in-arctic-tundra/
Siberia above the Arctic Circle was experiencing 100F days. Arctic Circle!

Expect this in Alaska and Canada, too. I expect that Putin is clamping down on this type of news now. I think he WANTS maximum warming. Ice-free ports, thawed Siberia, etc., for an even more glorious Russian Empire.

Over ten years ago, a NOAA scientist said in a seminar that the ocean was saturated and could no longer absorb net CO2. That's a HUGE difference with the previous hundred years.

I'm afraid that we are well into positive feedback country. We can still slow the rate of change, with massive effort. Not with new fossil projects.