That's true, but you don't need to bury the whole tree. You can fell the tree, gassify it, and get a steady stream of fuel and pure carbon. The process is exoth

That's true, but you don't need to bury the whole tree. You can fell the tree, gassify it, and get a steady stream of fuel and pure carbon. The process is exothermic and produces enough energy to be self sustaining and produce excess fuel. Bury the carbon and use the gas to produce energy and you have a forest that is a net reducer of carbon and a net positive energy producer.