Western Mail: WOOD is a renewable and sustainable source of energy, which unlike oil or coal can be replenished through new growth and planting. Burning wood gives off carbon dioxide, just like fossil fuels, but this is balanced by the carbon absorbed by the growing trees. Wood not burnt as fuel will still release the same amount of carbon dioxide when it eventually decomposes. Providing it is not transported long distances wood fuel can be a virtually zero-carbon source of ... Link VIA-EcologicalInternet.org (Dr. Glen Barry)