"Seriously though, anyone care to do the math on the impact of 1bn trees wrt. CO2 absorption?" That should be a fairly simple calculation, as children to your

"Seriously though, anyone care to do the math on the impact of 1bn trees wrt. CO2 absorption?" That should be a fairly simple calculation, as children to your post have shown ... More interesting (and difficult) is the carbon costs of actually planting the trees in the first place ... 40% of the trees were saplings[1] that were moved and planted with labor that was fed and moved, etc. I have no idea how those figures pencil out - if the best-case absorption is 1.5 lbs/tree per year, is it obvious that less than 100-150 lbs of carbon is spent in planting the tree ? [1] http://www.thehindu.com/news/international/billion-tree-tsunami-surges-across-northern-pakistan/article17473107.ece http://www.thehindu.com/news/international/billion-tree-tsun...