気候変動および人口・世帯構成変化を考慮した家計消費に伴う環境負荷の排出構造分析

• 吉川 直樹

  立命館大学理工学研究科

• 天野 耕二

  立命館大学理工学部

• 島田 幸司

  立命館大学経済学部

書誌事項

タイトル別名

• Analysis of Environmental Load related to Household Consumption Considering Climate Change and Household Characteristics

抄録

Objective. It is important to estimate future environmental load from household sector because CO₂ emission from household sector in Japan is increasing, and reduction of waste generation is also urgently required. Besides, the environmental load would be influenced by some driving forces: changes in population composition, increase of solitary household, climate change, economic growth, progress of environmental technology, changing lifestyle etc. In this study, we analyzed environmental load (CO₂, final disposal) induced from household consumption considering household characteristics, temperature rise and income, and estimated future environmental load in future scenarios of those.<BR>Results and Discussion. 4.6-28.4% increase in CO₂ emission and 8.9-40.8% increase in final disposal between 2000 and 2030 could be estimated in 24 scenarios those are combinations of 4 economic scenarios based on scenarios in the IPCC SRES and 6 population and household scenarios. Difference of CO₂ emission estimation by population and household variations is about 9% in maximum. Changes of CO₂ emission between 2000 and 2030 caused by socio-economic situation changes indicate -12.8% by population decline, +7.6% by household characteristics changes, and +25.9% by economic growth in the middle scenario. Temperature rise effect on CO₂ emission is negative, although it is not very significant.<BR>Conclusions. We estimated that future environmental loads induced by household consumption in Japan should increase and a certain amount of negative effect by population decline could be offset by household characteristics changes. The result suggests that it is important to consider not only population change but also consumption style change by demographic composition based on sustainable consumption.

収録刊行物

• 日本LCA学会誌

  日本LCA学会誌 5 (2), 252-261, 2009

  日本LCA学会

キーワード

• Household consumption
• CO₂ emission
• Waste disposal
• Future scenarios
• Environmental I-O model

詳細情報

• CRID: 1390282680252427264
• NII論文ID: 130004496263
• DOI: 10.3370/lca.5.252
• ISSN: 18810519
• ISSN: 18802761
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可