fatslob-:O said:
Lafiel said:
while large parts of Canada and Siberia could become farmland with a mild increase of ww mean temps this is also an unpredictable risk
permafrost soil stores away extremely large quantities of methane and other organic material which could quickly be released into the air/converted to carbondioxide/methane once they thaw and bacteria can do their work -> further temperature increase
and then theres the problem of methane ice reserves in the oceans - all that's needed is a few degrees K of a temperature rise to destabilize several large reserves, which would result in a "blow out" of the gas into the atmosphere further exacerbating the temperature increase (we have good evidence that this happened several times in the past and lead to extreme temperature spikes)
-> the potential gain is nowhere worth the risk
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You don't know that when climates are nonlinear systems ...
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that's right, it's an "educated guess" - the difference is that your scenario of a stable positive change is merely a "hope"
