CO2 and methane emissions from thawing Permafrost

CO2 and methane emissions from thawing Permafrost

Figure 22: CO2 and methane emissions from thawing permafrost can continue for decades or even centuries, as seen in this plot of estimated annual permafrost emissions in CO2 equivalent for the IPCC A1B scenario. In this scenario, anthropogenic emissions stop in 2100, but permafrost CO2 and methane emissions continue well past 2200 (Schaefer et al. 2011) From UNEP Report launched 27 November 2012 - Policy Implications of Warming Permafrost (PDF)

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Permafrost Not the Whole Methane Picture or Even the Worst of It

Right now and worsening during anthropogenic or any thermal maximum type global warming event is the activation of two much larger sources of land-based carbon and this is the release of methane caused by soil bacteria, called Actinobacteria, an anaerobic bacteria activated by warmer average temperatures (already activating), that release the carbon stored in world soils in Glomalin, a component of fungi. This release is in Methane (CH4). 90% or more of all carbon stored on land is stored in Glomalin. Also, extra gigatons of Methane are currently being released by warming vegetation or by vegetation itself from the Equator to the Tundra that finds itself over time in a warmer average climate regime. The CH4, Methane, stored in melting permafrost is not, however, at all insignificant. It, by itself, represents at least 450 gigatons of additional carbon in the form of Methane, as well, which is 23x to 60x the warming agent of CO2 and works right away. Remember that the total atmospheric gigatonnage of CO2 at present is about 450 gigatons. You understand the problem better when you compare all the REAL sources for Methane against even the large inputs of CO2 from 1760 to the present, of which, we're only experiencing about 50% of its warming effects. The 50% that we're not feeling is because CO2 works much more slowly over time at the beginning of a thermal maximum to warm the planet. Also, a large part of CO2 warming or any warming is masked by anthropogenic particulate pollution, which includes airliner exhaust, car emissions, as well as dust and other pollutants from poorly environmentally regulated manufacturing in China, India and other locations. Also, forests are burning at higher rates because of anthropogenic warming and greater access provided to disease and insect vectors weakening the integrity of forests along with poor management practices of woodlands.