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| DOI | 10.1038/s41561-021-00690-8 |
| Increased carbon footprint of materials production driven by rise in investments | |
| Hertwich E.G. | |
| 发表日期 | 2021 |
| ISSN | 17520894 |
| 起始页码 | 151 |
| 结束页码 | 155 |
| 卷号 | 14期号:3 |
| 英文摘要 | The production of materials is an important source of greenhouse gas emissions. To reduce emissions, policies aim to enhance material efficiency and the circular economy, but our understanding of the dynamics of material-related greenhouse gas emissions is limited. Here, I quantify the greenhouse gas emissions from material production and the carbon footprint of materials in industries that are the first users of materials, and in final consumption, using a multiregional input–output model of the global economy and the hypothetical extraction method. From 1995 to 2015, greenhouse gas emissions from just material production increased by 120%, with 11 billion tons of CO2-equivalent emitted in 2015. As a proportion of global emissions, material production rose from 15 to 23%. China accounted for 75% of the growth. In terms of the first use of materials, two-fifths of the carbon footprint of materials is attributed to construction, and two-fifths to the manufacturing of machinery, vehicles and other durable products. Overall, the replacement of existing or formation of new capital stocks now accounts for 60% of material-related emissions. Policies that address the rapidly growing capital stocks in emerging economies therefore offer the best prospect for emission reductions from material efficiency. © 2021, The Author(s), under exclusive licence to Springer Nature Limited. |
| 英文关键词 | carbon emission; carbon flux; carbon footprint; economic conditions; emission control; global economy; greenhouse gas; manufacturing; China; Matthiola |
| 语种 | 英语 |
| 来源期刊 | Nature Geoscience
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/206905 |
| 作者单位 | Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway |
| 推荐引用方式 GB/T 7714 | Hertwich E.G.. Increased carbon footprint of materials production driven by rise in investments[J],2021,14(3). |
| APA | Hertwich E.G..(2021).Increased carbon footprint of materials production driven by rise in investments.Nature Geoscience,14(3). |
| MLA | Hertwich E.G.."Increased carbon footprint of materials production driven by rise in investments".Nature Geoscience 14.3(2021). |
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