On Sat, 15 Jun 2019 08:45:48 +0100, Keema's Nan
wrote:


Methane is 80 (yes; eighty) times more effective than CO2 as a greenhouse
gas, so when all that methane trapped under the frozen tundra starts to
bubble to the surface as the tundra melts, humans are well and truly ****ed.


your numbers are dodgy
look at the tables here
https://www.abelard.org/briefings/global_warming.php

co2 stays in the atmosphere god knows how long...
methane for about 14 years...

a measure used is, effects after 100 years

methane thus has a much worse short term effect
but attenuates much more rapidly than co2...


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www.abelard.org