モノの消費には原材料の採掘から製造、使用、廃棄までそのライフサイクル全体を通じて環境負荷を生じます。中古製品の利用やシェアリングは、ヴァージン製品の消費抑制を通じて環境負荷削減に繋がります。 一方で、輸送や包装、洗浄など追加的に生じる環境負荷や、中古製品消費によって得られた追加的金銭や時間によるリバウンド効果も考える必要があります。さらに中古製品利用やシェアリングには利用する人や製品ごとに異なる価値観がその受容性に影響を与えています。これらの要因を検討評価し、中古製品やシェアリングを通じた持続可能な消費のあり方を提案していきます。
The consumption of goods imposes an environmental burden throughout their lifecycle from the mining of raw materials to the manufacturing, use, and disposal. The use of second-hand products and sharing can help reduce the environmental impact by reducing the consumption of virgin products. On the other hand, it is also important to consider the additional environmental impact of transportation, packaging, and cleaning of second-hand goods, as well as the rebound effect of the additional money and time gained from consuming these products. In addition, the acceptability of using second-hand goods and sharing is influenced by the user and product values. By examining and evaluating these factors, we will propose a sustainable way of consumption through the use of second-hand products and sharing.