Ok now, Im not quite sure about this, but if you cut down a tree, let it dry, then burn it, your creating smoke, carbon dioxide, heat, and half burnt wood/ash stuffs. Now, if you take the left-overs, and throw them in the dirt, your providing nutrients to the soil. Water vapors collect onto the smoke particles(from the wood you burnt), and form rain droplets. These droplets fall onto the now nourished soil... A seed comes along, and flourishes in the water and good soil. Assuming that you are'nt doing anything too extreme, would'nt this actually be very good for the enviroment? Any carbon-dioxide you create is cleaned out by the new tree, right? does this make sense to anyone?