 The amount of carbon sequestrated and the amount of GHG (greenhouse gases) emitted affect how the total GHG life cycle cost of a bioenergy project develops.Specifically, a GHG/carbon-negative life cycle is possible if the total below-ground carbon accumulation more than compensates for the above-ground total life-cycle GHG emissions.Biomass releases carbon dioxide gas that was absorbed during its growth cycle, indicating that released gas can be processed by photosynthetic methods.