气候变化领域集成服务门户(CCPortal): Limited quantity and quality of steel supply in a zero-emission future

CCPortal

DOI	10.1038/s41893-022-01025-0
	Limited quantity and quality of steel supply in a zero-emission future
	Watari, Takuma; Hata, Sho; Nakajima, Kenichi; Nansai, Keisuke
发表日期	2022
ISSN	2398-9629
页码	15
英文摘要	Achieving a zero-emission future depends greatly on how steel production is decarbonized within a limited time frame. Here we show that the production of zero-emission steel is possible but that the quantity and quality of steel may be limited by scrap downcycling. Using Japan as a case study, our analysis shows that most steel scrap is currently downcycled into construction materials, thereby limiting scrap-based steel to only 20% of the total steel used for automobiles, compared to 60% for buildings. Under a strict carbon budget, such downcycling practices could limit the production of steel used for automobiles to similar to 40% of current levels by 2050, even if production technology progresses according to the roadmap. The results indicate that steel users should not take the current level of steel supply for granted in a zero-emission future. Decarbonizing the steel sector, therefore, will depend not only on stand-alone efforts by the steel industry but on joint action with steel users to enable scrap upcycling and service provision with less steel use.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000909538400002
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272669
作者单位	National Institute for Environmental Studies - Japan; University of Cambridge; University of Technology Sydney; University of Tokyo
推荐引用方式 GB/T 7714	Watari, Takuma,Hata, Sho,Nakajima, Kenichi,et al. Limited quantity and quality of steel supply in a zero-emission future[J],2022:15.
APA	Watari, Takuma,Hata, Sho,Nakajima, Kenichi,&Nansai, Keisuke.(2022).Limited quantity and quality of steel supply in a zero-emission future.NATURE SUSTAINABILITY,15.
MLA	Watari, Takuma,et al."Limited quantity and quality of steel supply in a zero-emission future".NATURE SUSTAINABILITY (2022):15.