How much CO2 does a tree filter out of the air?

You can not really generalize the answer to this question, because it depends on many factors, how much CO2 a tree binds.

Among other things, it depends on the age of the tree, the species of the tree, how quickly it grows but also on external factors such as the water supply, the lighting and the quality of the ground.

All of these factors play into the question of how "effective" our tree is, so it is quiet difficult to give an easy answer.
2012-09-11 at 12:28

I once read, that a normal beech tree in 80 years accommodates about one ton of carbon dioxide. Of course, the beech tree takes up less, if it is smaller and has fewer biomass. So, the most are bringing only big, old trees.
2012-09-15 at 18:16