This interview was done a while ago but I think it serves to show it anyways. Ms. Shakhova says that methane concentrations at the time were the highest they had been in 400,000 years. Additionally, in a presentation she gave at a symposium on November 30, 2010 she states that methane release from the ESAS measured an additional 3.5 Gt, enough to trigger abrupt climate change.
That means the recent rise in methane release goes beyond what was necessary for abrupt change. With the wildfires raging in the Western US this seems like we’re in a nightmare situation. I think I’m going to write a post on the End Permian/Triassic mass extinction soon. I’m probably going to start researching moisture retention in soil and companion planting for hot environments given the heat wave the US has been experiencing.