Evaluating the Effects of Alternative Product Consumption Patterns on Material Flow CO2 Emissions in China

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  • Wada Naoki
    Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University
  • Yamamoto Yugo
    Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University
  • Saito Osamu
    Waseda Institute for Advanced Study, Waseda University
  • Morioka Tohru
    Faculty of Environmental and Urban Engineering, Kansai University
  • Tokai Akihiro
    Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University

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Other Title
  • 中国における消費形態の違いが製品・廃棄物フローの形成とＣＯ２排出に及ぼす影響の評価
  • チュウゴク ニ オケル ショウヒ ケイタイ ノ チガイ ガ セイヒン ハイキブツ フロー ノ ケイセイ ト CO2 ハイシュツ ニ オヨボス エイキョウ ノ ヒョウカ
  • Evaluating the Effects of Alternative Product Consumption Patterns on Material Flow and CO2 Emissions in China

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In this paper, we evaluate the effects that consumption patterns have on CO2 emissions and waste generated from electrical and electronic equipment in China. We focus on consumer decisions regarding product selection, usage and disposal assuming that these behaviors significantly influence energy efficiency and the flow of discarded products. Four distinguishing consumption patterns were revealed as a result of a questionnaire and from research literature : “Business as Usual”, “Frequent Replace”, “Chain of Uses” and “Quality and Wisdom.” We also evaluate differences in product flow and environmental impacts from 2006 to 2030. Results show that “Quality and Wisdom” is the best style of consumption with regard to both CO2 emissions and reduction of waste generation. When the effects on living standards are taken into consideration, however, a combination of “Quality and Wisdom” and “Chain of Users” seems to best contribute to an optimization of trade-offs between multiple targets of resource consumption, the release of hazardous materials and economic disparities.

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