Material flow analysis (MFA) could provide methodological support for quantifying material carbon flow and carbon emissions in the pursuit of carbon neutrality. Despite the extensive publication of MFA studies in academic journals, significant challenges remain on MFA and its application in carbon emission (MFA-CE) research, including identifying emerging research trends. This paper reviews MFA and MFA-CE research based on bibliometric analysis of data from WOS (Web of Science) platform, spanning from 1991 to 2022. We find that over the last 32 years: (1) Both MFA and MFA-CE research share similar article characteristics, such as rapid and active fluctuations in trends, with high-output countries primarily being the USA, China, and others; (2) MFA and MFA-CE are multidisciplinary fields, showing the fastest growth in Environmental Studies and Economics research; (3) Highly cited papers mainly focus on global material flow, environmental impact, and recycling. Notably, high citation analysis shows that both MFA and MFA-CE research have garnered substantial attention since 2014; and (4) Combining MFA with other methods would help identify material flow, such as carbon material flow. Additionally, the future perspectives of MFA-CE research were summarized: increasing interdisciplinary cooperation; a growing emphasis on multi-scale research; and enhanced availability and application of data.
{"title":"Review of material flow analysis and its application under carbon neutralization target: a bibliometric perspective","authors":"Lina Liu, Jiansheng Qu, Xuemei Li, Qin Liao, Yibo Niu","doi":"10.20517/cf.2024.16","DOIUrl":"https://doi.org/10.20517/cf.2024.16","url":null,"abstract":"Material flow analysis (MFA) could provide methodological support for quantifying material carbon flow and carbon emissions in the pursuit of carbon neutrality. Despite the extensive publication of MFA studies in academic journals, significant challenges remain on MFA and its application in carbon emission (MFA-CE) research, including identifying emerging research trends. This paper reviews MFA and MFA-CE research based on bibliometric analysis of data from WOS (Web of Science) platform, spanning from 1991 to 2022. We find that over the last 32 years: (1) Both MFA and MFA-CE research share similar article characteristics, such as rapid and active fluctuations in trends, with high-output countries primarily being the USA, China, and others; (2) MFA and MFA-CE are multidisciplinary fields, showing the fastest growth in Environmental Studies and Economics research; (3) Highly cited papers mainly focus on global material flow, environmental impact, and recycling. Notably, high citation analysis shows that both MFA and MFA-CE research have garnered substantial attention since 2014; and (4) Combining MFA with other methods would help identify material flow, such as carbon material flow. Additionally, the future perspectives of MFA-CE research were summarized: increasing interdisciplinary cooperation; a growing emphasis on multi-scale research; and enhanced availability and application of data.","PeriodicalId":475908,"journal":{"name":"Carbon Footprints","volume":"22 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammed Ahsanur Rahim, Jeffrey Wilson, Ryan Johnson
All levels of government must prepare for an increase in adverse weather events related to climate change. Developing resilient transportation infrastructure is critical to minimizing disruptions, economic loss, and human health impacts. A challenge for national and regional governments, however, is understanding how to prioritize investments given risk levels and limited resources. This study proposes a framework, using the Region of Peel, Canada as a case study to identify and prioritize key risks in a critical economic sector for the region: intermodal goods movement. The framework integrates projected changes in weather patterns, estimating the damage to infrastructure, interruption of economic activity, and adverse impacts on the workforce, accounting also for impacts on communities, for sound policy formulation. The framework will underpin a data collection plan to inform future policy and investment in strengthening adaptation and resilience to the most likely hazards affecting goods movement. The framework was designed with a view to being easily adapted to other sectors and regions.
{"title":"Defining a novel method to undertake sectoral risk management under climate change: a case study of intermodal transportation in the Peel Region, Ontario, Canada","authors":"Muhammed Ahsanur Rahim, Jeffrey Wilson, Ryan Johnson","doi":"10.20517/cf.2023.40","DOIUrl":"https://doi.org/10.20517/cf.2023.40","url":null,"abstract":"All levels of government must prepare for an increase in adverse weather events related to climate change. Developing resilient transportation infrastructure is critical to minimizing disruptions, economic loss, and human health impacts. A challenge for national and regional governments, however, is understanding how to prioritize investments given risk levels and limited resources. This study proposes a framework, using the Region of Peel, Canada as a case study to identify and prioritize key risks in a critical economic sector for the region: intermodal goods movement. The framework integrates projected changes in weather patterns, estimating the damage to infrastructure, interruption of economic activity, and adverse impacts on the workforce, accounting also for impacts on communities, for sound policy formulation. The framework will underpin a data collection plan to inform future policy and investment in strengthening adaptation and resilience to the most likely hazards affecting goods movement. The framework was designed with a view to being easily adapted to other sectors and regions.","PeriodicalId":475908,"journal":{"name":"Carbon Footprints","volume":"51 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140367881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electric vehicles play a crucial role in the carbon neutrality transformation of urban transportation, provided that they are powered by electricity generated from renewable (rather than fossil-based) generation sources. However, the substantial indirect emissions from electric vehicle air conditioning energy consumption and the significant direct emissions from HFCs (hydrofluorocarbons) refrigerants pose considerable challenges. In order to identify low-GWP (global warming potential) refrigerants -such as R1234yf, R744, and R290 - that can effectively minimize carbon emissions while maintaining certain cost-effectiveness, this paper establishes the relevant life-cycle analysis and life-cycle cost analysis models for electric vehicle air conditioning. The results obtained show that, in 2022, the total carbon emissions of China’s automotive air conditioning fleet were approximately 162 million tons CO2-eq. The nationwide average carbon emissions ranking of various refrigerant heat pumps is R290 < R1234yf < R744 < R134a. The Net Present Value (NPV) of the life cycle cost for R134a electric vehicle heat pump is estimated to be around 11,500 yuan. Among the three low-GWP refrigerants, the life cycle cost of R290 is significantly lower than that of R134a under nationwide average conditions, while R744 exhibits the best life cycle performance in certain cold cities/regions.
{"title":"The emission reduction potential and cost-effectiveness of low-GWP refrigerants in electric vehicle air conditionings","authors":"Anran Li, Binbin Yu, Yingjing Zhang, Hongsheng Ouyang, Zhikai Guo, Junye Shi, Jiangping Chen","doi":"10.20517/cf.2023.54","DOIUrl":"https://doi.org/10.20517/cf.2023.54","url":null,"abstract":"Electric vehicles play a crucial role in the carbon neutrality transformation of urban transportation, provided that they are powered by electricity generated from renewable (rather than fossil-based) generation sources. However, the substantial indirect emissions from electric vehicle air conditioning energy consumption and the significant direct emissions from HFCs (hydrofluorocarbons) refrigerants pose considerable challenges. In order to identify low-GWP (global warming potential) refrigerants -such as R1234yf, R744, and R290 - that can effectively minimize carbon emissions while maintaining certain cost-effectiveness, this paper establishes the relevant life-cycle analysis and life-cycle cost analysis models for electric vehicle air conditioning. The results obtained show that, in 2022, the total carbon emissions of China’s automotive air conditioning fleet were approximately 162 million tons CO2-eq. The nationwide average carbon emissions ranking of various refrigerant heat pumps is R290 < R1234yf < R744 < R134a. The Net Present Value (NPV) of the life cycle cost for R134a electric vehicle heat pump is estimated to be around 11,500 yuan. Among the three low-GWP refrigerants, the life cycle cost of R290 is significantly lower than that of R134a under nationwide average conditions, while R744 exhibits the best life cycle performance in certain cold cities/regions.","PeriodicalId":475908,"journal":{"name":"Carbon Footprints","volume":"53 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140440483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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