讲座题目 | Livestock antimicrobial use embodied in global supply chains | ||
主讲人 （单位） | 郑赫然 (伦敦大学学院) | 主持人 （单位） | 尹威 （东南大学） |
讲座时间 | 5月28日上午10点 | 讲座地点 | 经管楼B203 |
主讲人简介 |
郑赫然，伦敦大学学院巴特莱特可持续建设学院助理教授，可持续基础建设经济与金融学科副负责人，英国皇家地理学会会士，Elsevier/Stanford全球2%高引学者，UCL巴特莱特学院可持续科学与技术中心成员，OECD投入产出分析手册咨询组成员。现为Humanities and Social Science Communications，Frontiers in Sustainable Cities编委, Innovation Geoscience青年编委，以及Cities特刊的客座编辑。从事全球产业链数据库搭建、可持续生产与消费、低碳基础设施转型的研究与教学。曾在Nature Climate Change, Nature Sustainability, Nature Cities, Science Bulletin, Global Environmental Change等期刊发表论文80余篇，H-index 37。获得ERL期刊Top Cited Paper奖。 主要研究方向：小尺度投入产出数据库编制、可持续生产与消费 | ||
讲座内容摘要 | Antimicrobial resistance presents a significant and growing threat to planetary health, largely driven by the extensive use of antimicrobials in livestock farming. In the context of globalization, the consequences of this practice extend beyond local agricultural systems along global production networks. However, our understanding of the global spillover effects of livestock antimicrobial use remains incomplete. Here, we quantify and analyze the global antimicrobial footprints embodied in livestock production, tracking their flow through global supply chains from 2010-2020. Using a global supply chain model integrated with livestock antimicrobial usage estimates, we reveal that global antimicrobial footprints peaked at 118.6 kilotons (kt) in 2013, followed by a notable declining to 84.0 kt by 2020. China and the United States emerged as the dominant contributors, accounting for nearly 60% of the global footprint. Although the majority of antimicrobial use remains embodied in domestically produced goods, the proportion embodied in international trade increased from 16% to 20% over the last decade, indicating a significant spillover impact driven by global trade dynamics. Antimicrobial footprint per capita declined from 15.6 g/cap to 11.6 g/cap. Developed economies displayed higher antimicrobial use per capita linked to trade, while developing economies had greater antimicrobial use embodied in local production. A notable shift occurred in the pattern of antimicrobials embodied in international trade, with Brazil surpassing China as the largest exporter of antimicrobials used in livestock production by 2020. Intriguingly, non-food products, particularly in the clothing, services, and manufacturing sectors, contributed to approximately 50% of the antimicrobial footprint embodied in trade. The decline in trade-related antimicrobial footprint is closely associated with the reduced intensity of use, driven by stricter policies and enhanced efforts to control antimicrobial use, especially in China. This offers an accountability for the global antimicrobials reduction policymaking and empowers the policymakers from local to global level antimicrobials management for the sustainable development of livestock production. | ||
