Changes in the carbon footprint of Japanese households in an aging society

Yosuke Shigetomi, Keisuke Nansai, Shigemi Kagawa, Susumu Tohno

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)


As the aging and low birthrate trends continue in Japan, and as changes in the working population and consumption patterns occur, new factors are expected to have an impact on consumption-based greenhouse gas (GHG) emissions. We present the impacts of changes in the composition of Japanese households on GHG emission structures using current (2005) consumption-based accounting on the commodity sectors that are expected to require priority efforts for reducing emissions in 2035. This is done using the Global Link Input-Output model (GLIO) and domestic household consumption data and assuming that recent detailed consumption expenditures based on the Social Accounting Matrix (SAM) will continue into the future. The results show that consumption-based GHG emissions derived from Japanese household consumption in 2035 are estimated to be 1061 Mt-CO2eq (4.2% lower than in 2005). This study can be used to reveal more information and as a resource in developing policies to more meticulously and efficiently reduce emissions based on emission and import rates for each domestic and overseas commodity supply chain.

Original languageEnglish
Pages (from-to)6069-6080
Number of pages12
JournalEnvironmental Science and Technology
Issue number11
Publication statusPublished - Jun 3 2014

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Environmental Chemistry


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