Potential Influence of Carbon Fixation by Wood Carbonization on Atmospheric CO₂ Concentration and Temperature

Out of greenhouse gases causing global warming, CO₂ has the largest direct contribution after industrial revolution. To reduce CO₂ concentration, it is essential to collect CO₂ in the atmosphere and store it in separate places from the atmosphere. As a method of CO₂ capture and fixation, we studied a method using carbonization of wood. Based on the statistics of domestic wood production and import/export, we estimated possible amount of fixed CO₂ as 8 to 10% of annually emitted CO₂ in Japan. Influence of wood carbonization on CO₂ concentration in the atmosphere was also examined based on a prediction model for the atmospheric CO₂ concentration.