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Originally Posted by JoeRedskin
Yes. You must be right b/c once greenhouse gases are pumped into the air they stay there forever!!
There is, actually, another side to the equation in that GHG's have an atmospheric lifetime (form most it is a few years). The question is whether the rate of production the GHG's with longer atmospheric lifetimes is outstripping the ability of the world ecosystem to absorb/dilute and ultimately disperse the GHG's and, if so, to what extent. That is a complex question dependent on climate models which, in turn, depends on the variables and assumptions used in those models.
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Again, you're overthinking. You are a good thinker but sometimes you just do too much of it. The question is not whether the greenhouse gases can be absorbed. They would be absorbed at the same rate regardless. The question is how much would be in the atmosphere if we controlled our emissions better, vs how much would be in the atmosphere if we just burned fuel like China.
Focus on the actionable.