日本地球惑星科学連合2025年大会

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[J] 口頭発表

セッション記号 M (領域外・複数領域) » M-IS ジョイント

[M-IS21] プラスチック汚染の実態把握と対策

2025年5月25日(日) 10:45 〜 12:15 103 (幕張メッセ国際会議場)

コンビーナ:加古 真一郎(鹿児島大学大学院理工学研究科)、磯辺 篤彦(九州大学応用力学研究所)、笹尾 俊明(立命館大学)、山本 雅資(神奈川大学)、座長:笹尾 俊明(立命館大学)、山本 雅資(神奈川大学)

11:00 〜 11:15

[MIS21-08] プラスチック廃棄物問題解決のための経済的手法

*笹尾 俊明1 (1.立命館大学)

キーワード:経済的手法、上流対策、下流対策、プラスチック廃棄物、プラスチック税

This study reviews economic measures to tackle the issue of plastic waste. Ishikawa (2019) suggests that it is important to distinguish between the flow and stock aspects of plastic issues and implement measures tailored to each aspect. Flow-related measures include upstream efforts at the manufacturing stage, such as designing plastic-free products and incorporating recycled plastics, as well as downstream measures such as recycling and waste management. Stock-related measures include cleaning up plastic waste in terrestrial environment and salvaging floating plastic debris in rivers, lakes and oceans. OECD (2024) shows that significant improvements in waste sorting and recycling in all countries and robust markets for scrap and secondary plastics are necessary to end plastic leakage by 2040. In addition, it suggests that internationally harmonized standards to establish eco-design criteria is also necessary to phase out problematic or unnecessary plastics. This study focuses on the upstream measures such as plastic taxes/levies implemented or planned to introduce in some European countries in near future. It examines the possibility of plastic taxes/levies on plastic production and consumption.