David, you miss my point. I am comparing the effect of the proposed
afforestation to the effect of the observed deforestation. To match
expected CO2 for the next century appears to be a mismatch in
magnitude. I estimate that afforestation will do about as much good
for the carbon balance as deforestation did damage. This appears to be
about 15 times too small, which is a big enough gap that it causes me
concern.

What accounts for the difference?

mt

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