.png){kind=icon}
返回
Towards circular plastics within planetary boundaries
.png){kind=icon}
OA
AI
DOI：10.1038/s41893-022-01054-9.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The rapid growth of plastics production exacerbated the triple planetary crisis of habitat loss, plastic pollution and greenhouse gas (GHG) emissions. Circular strategies have been proposed for plastics to achieve net-zero GHG emissions. However, the implications of such circular strategies on absolute sustainability have not been examined on a planetary scale. This study links a bottom-up model covering both the production and end-of-life treatment of 90% of global plastics to the planetary boundaries framework. Here we show that even a circular, climate-optimal plastics industry combining current recycling technologies with biomass utilization transgresses sustainability thresholds by up to four times. However, improving recycling technologies and recycling rates up to at least 75% in combination with biomass and CO2 utilization in plastics production can lead to a scenario in which plastics comply with their assigned safe operating space in 2030. Although being the key to sustainability and in improving the unquantified effect of novel entities on the biosphere, even enhanced recycling cannot cope with the growth in plastics demand predicted until 2050. Therefore, achieving absolute sustainability of plastics requires a fundamental change in our methods of both producing and using plastics. The sustainability of the net-zero circular strategies of plastics has not been previously examined on a planetary scale. Linking a bottom-up model for the production and end-of-life treatment of plastics to the planetary boundaries framework, this study shows the need to scale up recycling and reconsider how we produce and use plastics.
Keyword:
GREENHOUSE-GAS EMISSIONS
CARBON-DIOXIDE
CYCLE
SUSTAINABILITY
CATALYSIS
期刊
IF:
27.1
论文数:
1.9K
被引数:
2.5W
机构
引用论文
Estimation of Total Materials Requirement: Energy Resources and Industrial Materials总材料需求估算: 能源和工业材料OAAI
OAAI分享收藏Life cycle assessment of carbon dioxide removal technologies: a critical review二氧化碳去除技术的生命周期评估: 严格审查OAAI
OAAI分享收藏Sustainable intensification of agriculture for human prosperity and global sustainability农业可持续集约化促进人类繁荣和全球可持续发展.png)
AMBIO
OAAI
AMBIOIF5.1
OAAI分享收藏The Critical Role of Process Analysis in Chemical Recycling and Upcycling of Waste Plastics过程分析在废塑料化学回收和升级中的关键作用OAAI
OAAI分享收藏Review of life-cycle based methods for absolute environmental sustainability assessment and their applications基于生命周期的绝对环境可持续性评价方法及其应用综述OAAI
OAAI分享收藏Sustainability footprints of a renewable carbon transition for the petrochemical sector within planetary boundariesONE EARTHOAAI
ONE EARTHIF15.3
OAAI分享收藏分享收藏
查看更多内容