Dynamic greenhouse gas accounting for cellulosic biofuels: implications of time based methodology decisions

摘要: Purpose Greenhouse gas (GHG) emissions resulting from biofuel production and use often occur over many different years. Nondynamic GHG accounting methods traditionally sum the global warming impacts (GWIs) occurring a 100-year period for all in life cycle regardless of emission timing. When examining biofuels policy perspective, time horizons are chosen to determine benefits or action has desired period. It is critical only account within given by having consistent temporal boundaries. calculating GWI as function time, additional assumptions data required. These have implications on results explored herein their influence overall conclusions when comparing made cellulosic feedstocks.