The concept behind biochar is a bit complicated but very interesting. Based on an ancient Amazonian practice of burying carbon in the soil, the industry plans to sequester vast quantities of carbon in the soil and sell the latent emissions as credits on the worldwide carbon market. The theory is that if terra preta (charcoal enriched soil) is created on a global scale as much as 6 billion tons of CO2 would be prevented from entering the atmosphere every year. Although this is only about half of the 8 to 10 billion tons of carbon emitted yearly by human activity it is still substantial enough to be investigated. In fact, scientists around the world are saying that burying biochar would not only slow the rate of global warming it would also enhance the soil and make a side dish of sustainable biofuels as well.
March 23, 2010