Hi All,

I'm looking for some reference on how much carbon dioxide or
greenhouse
gases are absorbed depending on the species of tree.

I understand that of course that to compare different trees you'd
need to normalize for how tall and wide the tree is and even then
any numbers would only be approximate.

But the sort of information i'm seeking would be something like
how many pounds of co2 a mature maple absorbs per year,
versus a pine (for example).

(This kind of statistic or approximate statistic must be very
well known, and living in some database somewhere,
but i'm really clueless on how to seek for it.)

Thanks in advance for any pointers or references.

dan

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