{"title":"钢铁回收的全球停滞和地区差异","authors":"Takuma Watari , Tomer Fishman , Hanspeter Wieland , Dominik Wiedenhofer","doi":"10.1016/j.resconrec.2025.108363","DOIUrl":null,"url":null,"abstract":"<div><div>Steel is widely regarded as the world's most recycled material, yet little information exists on just how circular the steel industry actually is, both globally and nationally. This study traces iron and steel flows across the top 30 steel-producing countries, showing that the share of recycled iron inputs into global steelmaking has stagnated at ∼30 % over the past two decades. Although waste management practices have improved, the rapid growth of global in-use steel stock has prevented progress in making steel flows more circular. While some countries show higher recycled content than others, ranging from <10 % to >90 %, this does not necessarily reflect leadership in recycling practices. Rather, high circularity in some places is often supported by low circularity elsewhere through scrap imports or 'offshoring' the production of high-quality flat products. As long as global steel stock continues to grow, improvements in local circularity do not necessarily lead to global progress.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"220 ","pages":"Article 108363"},"PeriodicalIF":11.2000,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Global stagnation and regional variations in steel recycling\",\"authors\":\"Takuma Watari , Tomer Fishman , Hanspeter Wieland , Dominik Wiedenhofer\",\"doi\":\"10.1016/j.resconrec.2025.108363\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Steel is widely regarded as the world's most recycled material, yet little information exists on just how circular the steel industry actually is, both globally and nationally. This study traces iron and steel flows across the top 30 steel-producing countries, showing that the share of recycled iron inputs into global steelmaking has stagnated at ∼30 % over the past two decades. Although waste management practices have improved, the rapid growth of global in-use steel stock has prevented progress in making steel flows more circular. While some countries show higher recycled content than others, ranging from <10 % to >90 %, this does not necessarily reflect leadership in recycling practices. Rather, high circularity in some places is often supported by low circularity elsewhere through scrap imports or 'offshoring' the production of high-quality flat products. As long as global steel stock continues to grow, improvements in local circularity do not necessarily lead to global progress.</div></div>\",\"PeriodicalId\":21153,\"journal\":{\"name\":\"Resources Conservation and Recycling\",\"volume\":\"220 \",\"pages\":\"Article 108363\"},\"PeriodicalIF\":11.2000,\"publicationDate\":\"2025-05-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Resources Conservation and Recycling\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0921344925002423\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Resources Conservation and Recycling","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921344925002423","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Global stagnation and regional variations in steel recycling
Steel is widely regarded as the world's most recycled material, yet little information exists on just how circular the steel industry actually is, both globally and nationally. This study traces iron and steel flows across the top 30 steel-producing countries, showing that the share of recycled iron inputs into global steelmaking has stagnated at ∼30 % over the past two decades. Although waste management practices have improved, the rapid growth of global in-use steel stock has prevented progress in making steel flows more circular. While some countries show higher recycled content than others, ranging from <10 % to >90 %, this does not necessarily reflect leadership in recycling practices. Rather, high circularity in some places is often supported by low circularity elsewhere through scrap imports or 'offshoring' the production of high-quality flat products. As long as global steel stock continues to grow, improvements in local circularity do not necessarily lead to global progress.
期刊介绍:
The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns.
Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.