For the past two winters I have been burning cord wood in a Greenwood Technologies high efficiency boiler which runs 24/7 generating up to 300k btu's per hour to heat a 6600 sq ft shop and a tunnel and eventually our home. By burning some of the 6000 acres of fire killed pine forest, we are cleaning up the area for regrowth, saving the cost of propane and thus not putting additional fossil fuel CO2 into the atmosphere. It is my understanding that the amount of CO2 going into the admosphere is about the same if you burn the wood or it decomposes. By burning it in a ceramic high efficiency boiler there is no visible smoke after a few minutes of initial burn.
I am not a scientist, but would be glad to work with any student wishing to study the process.