2024-11-14 カリフォルニア大学サンタバーバラ校(UCSB)
＜関連情報＞
- https://news.ucsb.edu/2024/021690/new-study-science-maps-out-comprehensive-plan-eliminate-plastic-pollution-2050
- https://www.science.org/doi/10.1126/science.adr3837
2050年までに世界のプラスチック廃棄物の誤管理と温室効果ガス排出を削減する道筋 Pathways to reduce global plastic waste mismanagement and greenhouse gas emissions by 2050
A. Samuel Pottinger, Roland Geyer, Nivedita Biyani, Ciera C Martinez, […], and Douglas J McCauley
Science Published:14 Nov 2024
DOI:https://doi.org/10.1126/science.adr3837
Abstract
Plastic production and plastic pollution negatively affect our environment, environmental justice, and climate change. Using detailed global and regional plastics datasets coupled with socio-economic data, we employ machine learning to predict that, without intervention, annual mismanaged plastic waste will nearly double to 121 Mt (100 – 139 Mt 95% CI) by 2050. Annual greenhouse gas emissions from the plastic system are projected to grow by 37% to 3.35 Gt CO2 equivalent (3.09 – 3.54 CO2e) over the same period. The United Nations plastic pollution treaty presents a unique opportunity to reshape these outcomes. We simulate eight candidate treaty policies and find that just four could together reduce mismanaged plastic waste by 91% (86% – 98%) and gross plastic-related greenhouse gas emissions by one third.
