The IPCC scientists and global warming alarmists predicted that increasing CO2 emissions would lead to a catastrophic permafrost tipping point, unleashing gigatons of methane gas - they were wrong
Read here. The Fakegate global warming alarmists and the IPCC's Climategate scientists are enraptured with the doom and gloom of climate change "tipping points." A favorite tipping point is that greater levels of CO2 emissions would cause a global warming that thaws the permafrost in northern latitude regions (tundra regions), such as Siberia, thus releasing gigatons of the powerful greenhouse gas methane into the atmosphere.
This is referred to as the global warming permafrost tipping point that results in runaway temperature increases. A new peer reviewed study finds that is not happening.
"Focusing on the massive seasonally-frozen ground region of Eurasia, Frauenfeld and Zhang employed a database of soil temperature profiles obtained at 423 stations to estimate the maximum annual soil freezing depth at 387 sites, which they did for the period 1930-2000, with an extension to 2008...Except for warming during the 1970s and 80s, northern Eurasian temperatures appear to have remained fairly stable. And of that warming, Frauenfeld and Zhang state that "the strong decrease in seasonal freeze depths during the 1970s to 1990s was likely the result of strong atmospheric forcing from the North Atlantic Oscillation during that time period." Thus, their work provides little to no evidence for any significant warming of this massive portion of earth's land mass over the past two decades, and absolutely no evidence for recent CO2-induced warming." [Oliver W Frauenfeld, Tingjun Zhang 2011: Environmental Research Letters]