I think I’ll go light a stogie and make some gratuitous CO2.
Actually you're just recycling the carbon back into the air from whence it came.
So many of these "green" ideas are dumb... Sure, you can plant more trees but when they die or are cut down... what then? Eventually most will be burned or other release the carbon as CO2.
Now if you cut the trees and dumped them in the ocean (perhaps at the North Pole), you'd somewhat permanently sequester that carbon...