I didn't address all the possible nuances, but for the purposes of being precise: "reforestation at the scale necessary to act as an effective carbon sink is uneconomical".
As you must know, trees accelerate their carbon sequestration as they get larger. Also, fruit and nut agricultural species are frequently not robust enough, fast growing enough, or zone hardy enough to be good candidates for this either.
Yes, trees have economical value. Trees an a AGW-countering scale carbon sink are not. I'm in favor of a carbon tax/credit system in part for this reason.
As you must know, trees accelerate their carbon sequestration as they get larger. Also, fruit and nut agricultural species are frequently not robust enough, fast growing enough, or zone hardy enough to be good candidates for this either.
Yes, trees have economical value. Trees an a AGW-countering scale carbon sink are not. I'm in favor of a carbon tax/credit system in part for this reason.