I asked you to show some error in post 1710. Your reply is newspaper articles, obsolute IPPC errors (Some I have noted long ago as I too am critical of the IPPC) and you gave the irrelevant fact that there are CH4 eating bacteria that destroy less than 1% of the CH4 other bacteria produce and noted that the 50G ton methane bomb is not probable (and I agree, so I never mentioned it in post 1710 and will not defend your straw man)
But no fact of post 1710 was even questioned, much less refuted.
So as post 1710 notes: Man and all but the very tiny warm-blooded animals is riding the non-stop, fast accelerating, "extinction train" and will not live to see year 2100.
I'll try to get to your newspaper links, but working backwards, I note:
On (3) Yes there are living agents that can destroy CH4, but not nearly as much as other living agent produce CH4 from organic carbon, especially peat bogs no longer frozen.
http://www.sciencedaily.com/releases/2013/10/131010091700.htm said:
in decades to come, from an Arctic perspective, methane will remain the primary contributor to Earth's greenhouse gas budget. ... In autumn, when the surface of the tundra freezes and ice is formed, large quantities of the powerful greenhouse gas methane are released. In fact, the quantities released were so large, that the annual methane emissions had to be doubled in the calculation of the tundra's methane budget. ...
Soil moisture crucial:
Recent studies have shown that the formation of methane is closely linked to the tundra's water content -- as implied by the term "swamp gas." The more water is present in the tundra, the more methane is formed. And vice versa, where there is less water, the presence of oxygen will provide the basis for formation of CO2. ... Areas that become drier will give rise to increased CO2 emissions, whereas areas that become more moist will cause the emissions of methane to increase.
That is why GW melting frozen tundra, is increasing the CH4 to CO2 ratio these "living agents" are producing.
On (2) This is an accurate article but makes this false statement:
"Methane is a short-lived gas in the atmosphere, so to make it rise, the emission flux has to continually increase. "
It is false as already the CH4 release rate is faster than the production rate of OH- radical. Why the half-life of CH4 is increasing at 0.3 year per year. I.e. even the present release rate of CH4 will increase and even accelerate the atmospheric concentration of CH4 as each molecule on average, stays more years in the air before being destroyed. - Obviously the current increasing rate of CH4 releases will only increase the CH4 air concentration faster still.
On (1) I agree that currently CH4 release rate from tundra (their study in Alaska in 2012 only) is not contributing much to CH4 in the air, but as they note:
"Vast amounts of carbon are stored in undecayed organic matter -- dead plants and animals -- in Arctic permafrost and peat. Scientists estimate that there is more than twice as much carbon locked in the frozen North as there is in the atmosphere today. The organic material won't decay and release its carbon as long as it stays frozen. But climate change has brought warmer and longer summers throughout the Arctic, and permafrost soils are thawing more and more. If large amounts of un-decayed matter were to defrost, decompose and release methane and carbon dioxide into the atmosphere,
the impact on global temperatures would most likely be enormous."
Also please note I am not one speaking about a quick 50Gton methane bomb - just the current increasing rate of CH4 release. Fortunately, the annual increase is growing more slowly now as the natural gas & oil fracking industries are doing a better job of slowing their release rate; however, every year more is released than the prior year and it being removed from the air more slowly (half-life increasing at 0.3 years per year.)
You say: " That alleged prediction (which was really a HINDCAST) has been discredited."
I don't believe that is true. Where and by whom, has the prediction of ever more polar vortex wander (Arctic air dipping deeper into the South more often) been "discredited." Surely not by anyone living in the current record braking cold that again this year coated the streets of Atlanta GA with ice and buried the NE of the US with deep snow.