气候变化领域集成服务门户(CCPortal): China's bulk material loops can be closed but deep decarbonization requires demand reduction

CCPortal

DOI	10.1038/s41558-023-01782-6
	China's bulk material loops can be closed but deep decarbonization requires demand reduction
	Song, Lulu; van Ewijk, Stijn; Masanet, Eric; Watari, Takuma; Meng, Fanran; Cullen, Jonathan M.; Cao, Zhi; Chen, Wei-Qiang
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
英文摘要	China, as the largest global producer of bulk materials, confronts formidable challenges in mitigating greenhouse gas emissions arising from their production. Yet the emission savings resulting from circular economy strategies, such as improved scrap recovery, more intensive use and lifetime extension, remain underexplored. Here we show that, by 2060, China could source most of its required bulk materials through recycling, partially attributable to a declining population. Province-level results show that, while economic development initially drives up material demand, it also enables closed loops as demand approaches saturation levels. Between now and 2060, improved scrap recovery cumulatively reduces greenhouse gas emissions by 10%, while more intensive use, resulting in reduced material demand, reduces emissions by 21%. Lifetime extension offers a modest benefit, leading to a 3% reduction in emissions. Alongside the large potential for recycling, our findings highlight the importance of demand reduction in meeting global climate targets. Bulk materials are essential to modern society, but their production releases large amounts of GHG emissions. This Analysis shows that circular economy strategies have great potential for emissions mitigation, alongside reduced material demand.
英文关键词	PATTERNS; STEEL; IRON
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001065794300001
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282299
作者单位	Chinese Academy of Sciences; Institute of Urban Environment, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of London; University College London; University of California System; University of California Santa Barbara; University of California System; University of California Santa Barbara; University of Cambridge; National Institute for Environmental Studies - Japan; University of Sheffield; Nankai University
推荐引用方式 GB/T 7714	Song, Lulu,van Ewijk, Stijn,Masanet, Eric,et al. China's bulk material loops can be closed but deep decarbonization requires demand reduction[J],2023.
APA	Song, Lulu.,van Ewijk, Stijn.,Masanet, Eric.,Watari, Takuma.,Meng, Fanran.,...&Chen, Wei-Qiang.(2023).China's bulk material loops can be closed but deep decarbonization requires demand reduction.Nature Climate Change.
MLA	Song, Lulu,et al."China's bulk material loops can be closed but deep decarbonization requires demand reduction".Nature Climate Change (2023).