Developing methodology to evaluate decoupling economic growth from environmental impacts of resources and materials use in Japan – preliminary comparison,

Event: The 12th International Conference on EcoBalance
Date: Abstract Book, p.94, Kyoto
Conference Paper

We estimate the time-series environmental impact of material use which will be utilised to estimate eco-efficiency (GDP/environmental impact of material use) in Japan for identified 120 materials in four categories (fossil resources, non-metallic minerals, metals and biomass) by estimating the per unit of environmental impacts in resources/materials production with the LCA software MiLCA and compiling the amount of the resources/materials issued from production and trade statistics. The reference year is 2010 for which the total environmental impacts added up to JPY4.1 trillion of which 63 % was found to be associated with the top ten products. This study also compares the estimated environmental impacts among four resources/materials groups (plastics/synthetic-rubber, non-metallic minerals, metal and biomass). Resources/materials for energy use are excluded in the comparison because energy is used for the production of resources/materials for other groups, causing double counting. The group for metals shows the highest impact followed by biomass, plastics/synthetic-rubber and non-metallic minerals.

Author:
Daisuke
Tanaka
Sebastien
M.R. Dente
Chihiro
Kayo
Shinsuke
Murakami
Seiji
Hashimoto
Date: