True enough, but the situation currently is not one of expansion or even of a steady-state: old-growth forests are declining rapidly, and a good deal of the car

True enough, but the situation currently is not one of expansion or even of a steady-state: old-growth forests are declining rapidly, and a good deal of the carbon they are squestering is being released over the short term. The issue with forests is their being reservoirs that are being emptied.