Objective. The objective of this paper is to analyze the effect of GHG accounting for each sector by industrial and urban symbiosis system. GHG accounting to calculate Scope 1,2,3 is a buzz word in the field of LCA, but accounting method of recycling system have not been discussed fully. We designed non-recycling scenario and industrial and urban symbiosis scenario to estimate the Scope of each sector as a case study.
Results and Discussion. The results of GHG accounting (Scope1,2,3) showed those value of each sector was fully different as far as the reduction of CO2 of the whole system was stable. Energy intensive industries and waste management sector in municipalities reduced Scope1 though they increased Scope3 slightly. On the other hand, industries emitting industrial waste reduced Scope3 as the result of recycling the emitting wastes. The sum of GHG reduction of each sector would be more than the reduction of the whole system due to double counting. However the aim of GHG accounting is incentive to reduce GHG of each sector, so double counting would be approval.
