Pub Date : 2025-06-30DOI: 10.1016/j.spc.2025.06.018
Weiming Chen , Zhenjun Zhang
The rapid economic development in developing countries helps to achieve the United Nations's sustainable development goals (SDGs) of reducing inequality. However, the relatively high carbon intensity in these countries raises concerns about carbon mitigation, another SDGs. This poses challenges for the synergy between the two SDGs of reducing inequality and carbon emissions. Based an environmental extended multi-regional input-output model, we analyzed the differences in production-, consumption-, and income-based emissions between different income country groups, as well as the global Gini coefficients of production-, consumption-, and income-based emission, to provide insights for understanding the inter-country carbon inequality in a full supply chain perspective. The results show that the inter-country carbon inequality continued to decline during 2007–2017, especially in 2011–2014, the global Gini coefficient of production-based carbon emissions decreased from 0.54 to 0.50, while the Gini coefficients of consumption- and income-based emissions were always greater than that of production-based emissions. In addition, many high-income countries are not only net importers of embodied emissions, but also net exporters of value added. Finally, this study indicated that the middle-income countries represented by China were the main contributors to curb the growth of global carbon emissions during 2014–2017.
{"title":"The economic catch-up of developing countries has mitigated inter-country carbon inequality","authors":"Weiming Chen , Zhenjun Zhang","doi":"10.1016/j.spc.2025.06.018","DOIUrl":"10.1016/j.spc.2025.06.018","url":null,"abstract":"<div><div>The rapid economic development in developing countries helps to achieve the United Nations's sustainable development goals (SDGs) of reducing inequality. However, the relatively high carbon intensity in these countries raises concerns about carbon mitigation, another SDGs. This poses challenges for the synergy between the two SDGs of reducing inequality and carbon emissions. Based an environmental extended multi-regional input-output model, we analyzed the differences in production-, consumption-, and income-based emissions between different income country groups, as well as the global Gini coefficients of production-, consumption-, and income-based emission, to provide insights for understanding the inter-country carbon inequality in a full supply chain perspective. The results show that the inter-country carbon inequality continued to decline during 2007–2017, especially in 2011–2014, the global Gini coefficient of production-based carbon emissions decreased from 0.54 to 0.50, while the Gini coefficients of consumption- and income-based emissions were always greater than that of production-based emissions. In addition, many high-income countries are not only net importers of embodied emissions, but also net exporters of value added. Finally, this study indicated that the middle-income countries represented by China were the main contributors to curb the growth of global carbon emissions during 2014–2017.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 175-187"},"PeriodicalIF":10.9,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-27DOI: 10.1016/j.spc.2025.06.013
Keyi Shi , Ziqian Xia , Helene Gu , Claudia Nisa
Promoting a plant-based diet has become an important goal in tackling modern environmental challenges. While research examining the motivations behind plant-based diet have been conducted extensively in developed Western countries, evidence is lacking in developing countries including China, with the world's largest population and a rising meat demand. We examined three main motivations for plant-based diet (health, environmental and animal welfare) in Study 1 (cross-sectional survey N = 1000 across 25 provinces in China) and Study 2 (quasi-experimental field study in the cafeteria of an international joint venture University based in China [N = 35,471 food transactions over 19 weeks]). While Study 1 suggested that health and animal welfare motivations were the most significant predictors of choosing a plant-based diet, objective consumer choices from Study 2 showed more nuanced effects. More plant-based consumption was promoted by messages emphasizing animal and environmental benefits, but a reduction in actual meat consumption was only achieved when messages highlighting potential harms to human health were displayed. These results, as well as a misalignment between eating more vegetables and less meat dishes are subject to discussion and proposals for future research.
{"title":"Promoting plant-based diet in China: Testing health, environmental and animal welfare motivational messages","authors":"Keyi Shi , Ziqian Xia , Helene Gu , Claudia Nisa","doi":"10.1016/j.spc.2025.06.013","DOIUrl":"10.1016/j.spc.2025.06.013","url":null,"abstract":"<div><div>Promoting a plant-based diet has become an important goal in tackling modern environmental challenges. While research examining the motivations behind plant-based diet have been conducted extensively in developed Western countries, evidence is lacking in developing countries including China, with the world's largest population and a rising meat demand. We examined three main motivations for plant-based diet (health, environmental and animal welfare) in Study 1 (cross-sectional survey N = 1000 across 25 provinces in China) and Study 2 (quasi-experimental field study in the cafeteria of an international joint venture University based in China [N = 35,471 food transactions over 19 weeks]). While Study 1 suggested that health and animal welfare motivations were the most significant predictors of choosing a plant-based diet, objective consumer choices from Study 2 showed more nuanced effects. More plant-based consumption was promoted by messages emphasizing animal and environmental benefits, but a reduction in actual meat consumption was only achieved when messages highlighting potential harms to human health were displayed. These results, as well as a misalignment between eating more vegetables and less meat dishes are subject to discussion and proposals for future research.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 165-174"},"PeriodicalIF":10.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-27DOI: 10.1016/j.spc.2025.06.002
Christopher Cáceres , Lorena Espinoza-Pérez , Andrea T. Espinoza-Pérez , Natalia Velastín , Sebastián Dávila , Pavlo Santander
<div><div>In the search to improve life quality for people with a limb deficiency, prostheses play an important role in facilitating reintegration into social and working life due to higher health-related quality of life and employment rates reported among upper limb prosthesis users compared to non-users. In this field, introducing 3D printing for their manufacture has brought new proposals regarding cost reduction, better accessibility, and design customization. However, the environmental impacts of producing these devices are still understudied. In this context, this work aims to analyze the environmental impacts of 3D upper limb prostheses through life cycle assessment methodology, analyzing designs for children, adolescents, and adults. This assessment includes from the design stage to assembly with their respective residues. The ReCiPe Midpoint and Endpoint impact categories were assessed, in addition to calculating equivalencies, for a better understanding. Results show that the production of prostheses for children, adolescents, and adults corresponds to <span><math><mrow><mn>2</mn><mo>.</mo><mn>57</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, <span><math><mrow><mn>5</mn><mo>.</mo><mn>02</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, and <span><math><mrow><mn>9</mn><mo>.</mo><mn>64</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, respectively. Regarding the impacts on biodiversity, the production of prostheses for children, adolescents, and adults corresponds to <span><math><mrow><mn>1</mn><mo>.</mo><mn>08</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, <span><math><mrow><mn>2</mn><mo>.</mo><mn>79</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, and <span><math><mrow><mn>4</mn><mo>.</mo><mn>74</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, respectively. Concerning the impacts of natural resources, the production of prostheses for children, adolescents, and adults corresponds to 0.221 USD2013, 0.436 USD2013, and 0.784 USD2013, respectively. Midpoint and Endpoint categories show that, depending on the category, the relevance of the process impact could vary, changing the strategies to seek a lower environmental impact. Furthermore, the impact of the assembly stage also has different configurations depending on the impact category. Furthermore, results show that energy consumption and Polylactic Acid Biopolymer production from raw materials are the resources with the greatest impact on all the designs. Therefore, renewable energy sources and more efficient 3D printers are required to enhance
{"title":"Analysis of the environmental impacts generated by an upper limb prosthesis: Design for children, adolescents and adults","authors":"Christopher Cáceres , Lorena Espinoza-Pérez , Andrea T. Espinoza-Pérez , Natalia Velastín , Sebastián Dávila , Pavlo Santander","doi":"10.1016/j.spc.2025.06.002","DOIUrl":"10.1016/j.spc.2025.06.002","url":null,"abstract":"<div><div>In the search to improve life quality for people with a limb deficiency, prostheses play an important role in facilitating reintegration into social and working life due to higher health-related quality of life and employment rates reported among upper limb prosthesis users compared to non-users. In this field, introducing 3D printing for their manufacture has brought new proposals regarding cost reduction, better accessibility, and design customization. However, the environmental impacts of producing these devices are still understudied. In this context, this work aims to analyze the environmental impacts of 3D upper limb prostheses through life cycle assessment methodology, analyzing designs for children, adolescents, and adults. This assessment includes from the design stage to assembly with their respective residues. The ReCiPe Midpoint and Endpoint impact categories were assessed, in addition to calculating equivalencies, for a better understanding. Results show that the production of prostheses for children, adolescents, and adults corresponds to <span><math><mrow><mn>2</mn><mo>.</mo><mn>57</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, <span><math><mrow><mn>5</mn><mo>.</mo><mn>02</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, and <span><math><mrow><mn>9</mn><mo>.</mo><mn>64</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> DALY, respectively. Regarding the impacts on biodiversity, the production of prostheses for children, adolescents, and adults corresponds to <span><math><mrow><mn>1</mn><mo>.</mo><mn>08</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, <span><math><mrow><mn>2</mn><mo>.</mo><mn>79</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, and <span><math><mrow><mn>4</mn><mo>.</mo><mn>74</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>7</mn></mrow></msup></mrow></math></span> species.yr, respectively. Concerning the impacts of natural resources, the production of prostheses for children, adolescents, and adults corresponds to 0.221 USD2013, 0.436 USD2013, and 0.784 USD2013, respectively. Midpoint and Endpoint categories show that, depending on the category, the relevance of the process impact could vary, changing the strategies to seek a lower environmental impact. Furthermore, the impact of the assembly stage also has different configurations depending on the impact category. Furthermore, results show that energy consumption and Polylactic Acid Biopolymer production from raw materials are the resources with the greatest impact on all the designs. Therefore, renewable energy sources and more efficient 3D printers are required to enhance ","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 151-164"},"PeriodicalIF":10.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144519215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-27DOI: 10.1016/j.spc.2025.06.014
Wen Fang , Zhang Fan , Ying Cai , Yuyao Wang , Yuping Bai , Qi Feng
Urban forestation projects are being initiated to mitigate environmental issues, enhance climate change adaptation, and improve urban sustainability. In this study, we used Google Earth Engine (GEE) and Carnegie-Ames-Stanford Approach model (CASA) to evaluate the biomass carbon storage in 40 case cities with large-scale forestation projects. In 2010 and 2020, closed forests in cities of the tropical zones had the highest biomass carbon storage. Each of the three forestation patterns in the case cities - afforestation, reforestation and integrated (afforestation and reforestation) forestation - was orientated based on available local green space and urbanization trends. The study introduced refined carbon accumulation parameters based on climate zones and tree crown cover, generating a high-resolution spatial map of annual biomass carbon accumulation. From 2010 to 2020, the annual biomass carbon accumulation for urban forests (UFs) was 5.84 × 107 tC yr−1, equivalent to 0.58 tC ha−1 yr−1. The results can be used to assess the role of UFs in the carbon balance and mitigation of urban climate change. It can also provide guidance to urban planners in prioritizing the expansion of forestation areas and tree canopy cover for sustainable urban development, in accordance with climate and urban development conditions.
实施城市造林工程，缓解环境问题，增强气候变化适应能力，提高城市可持续性。本研究采用谷歌Earth Engine （GEE）和Carnegie-Ames-Stanford Approach模型（CASA）对40个大型造林城市的生物质碳储量进行了评估。2010年和2020年，热带地区城市的封闭森林的生物量碳储量最高。案例城市的三种造林模式- -造林、再造林和综合（造林和再造林）造林- -每一种都是根据现有的当地绿色空间和城市化趋势确定的。该研究引入了基于气候带和树冠盖度的精细碳积累参数，生成了高分辨率的年生物量碳积累空间图。2010 ~ 2020年，城市森林年生物量碳累积量为5.84 × 107 tC yr - 1，相当于0.58 tC ha - 1 yr - 1。研究结果可用于评估UFs在碳平衡和减缓城市气候变化中的作用。它还可以为城市规划者提供指导，根据气候和城市发展条件，优先扩大造林面积和树冠覆盖率，促进城市可持续发展。
{"title":"A remote sensing-based assessment of biomass carbon global temporal trends in urban forests","authors":"Wen Fang , Zhang Fan , Ying Cai , Yuyao Wang , Yuping Bai , Qi Feng","doi":"10.1016/j.spc.2025.06.014","DOIUrl":"10.1016/j.spc.2025.06.014","url":null,"abstract":"<div><div>Urban forestation projects are being initiated to mitigate environmental issues, enhance climate change adaptation, and improve urban sustainability. In this study, we used Google Earth Engine (GEE) and Carnegie-Ames-Stanford Approach model (CASA) to evaluate the biomass carbon storage in 40 case cities with large-scale forestation projects. In 2010 and 2020, closed forests in cities of the tropical zones had the highest biomass carbon storage. Each of the three forestation patterns in the case cities - afforestation, reforestation and integrated (afforestation and reforestation) forestation - was orientated based on available local green space and urbanization trends. The study introduced refined carbon accumulation parameters based on climate zones and tree crown cover, generating a high-resolution spatial map of annual biomass carbon accumulation. From 2010 to 2020, the annual biomass carbon accumulation for urban forests (UFs) was 5.84 × 10<sup>7</sup> tC yr<sup>−1</sup>, equivalent to 0.58 tC ha<sup>−1</sup> yr<sup>−1</sup>. The results can be used to assess the role of UFs in the carbon balance and mitigation of urban climate change. It can also provide guidance to urban planners in prioritizing the expansion of forestation areas and tree canopy cover for sustainable urban development, in accordance with climate and urban development conditions.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 267-276"},"PeriodicalIF":10.9,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-26DOI: 10.1016/j.spc.2025.06.009
Josep Oriol Izquierdo-Montfort, Yves De Rongé
Transitioning to a circular economy offers an alternative to the current linear model. Research on circular business models is growing but remains at a nascent stage, leaving a gap in understanding how individual firms transition towards circularity. This study analyses 63 cases of companies having implemented a circular business model innovation (CBMI) using content analysis of case studies descriptions and related corporate websites. We extend previous research by using a three-level analysis examining simultaneously resource retention options (RO), managerial practices, and business model value dimensions to understand how firms introduce circular economy practices in their business model to maximize resource value retention. Our study shows which 10 ROs are chosen by companies when they move to a circular business model and besides recycling and reducing, rethinking appears the most implemented RO. We identify 46 distinct CBMI managerial practices that companies implement across the three core business model dimensions—value proposition, value creation and delivery, and value capture. The analysis of the various combinations of RO and managerial practices in the different value dimensions of the business model implemented by the studied companies identifies five CBMI patterns, representing recurring combinations of practices that reshape business models towards circularity. Our results show that CBMI cannot be implemented as a one-size-fits-all solution and that firms must adopt a tailored approach depending on various aspects such as size, industry, consumer segment, as well as, resource availability and motivational drivers, by implementing circular practices across multiple business model dimensions while combining various ROs to enhance circularity. These insights contribute to the literature by offering a structured three-level approach for analysing CBMI and providing actionable guidance for firms aiming to implement circular strategies. Our study highlights the need for a holistic approach that integrates business model and circular economy perspectives.
{"title":"Circular business model innovation: Uncovering practices and patterns to retain the value of resources","authors":"Josep Oriol Izquierdo-Montfort, Yves De Rongé","doi":"10.1016/j.spc.2025.06.009","DOIUrl":"10.1016/j.spc.2025.06.009","url":null,"abstract":"<div><div>Transitioning to a circular economy offers an alternative to the current linear model. Research on circular business models is growing but remains at a nascent stage, leaving a gap in understanding how individual firms transition towards circularity. This study analyses 63 cases of companies having implemented a circular business model innovation (CBMI) using content analysis of case studies descriptions and related corporate websites. We extend previous research by using a three-level analysis examining simultaneously resource retention options (RO), managerial practices, and business model value dimensions to understand how firms introduce circular economy practices in their business model to maximize resource value retention. Our study shows which 10 ROs are chosen by companies when they move to a circular business model and besides recycling and reducing, rethinking appears the most implemented RO. We identify 46 distinct CBMI managerial practices that companies implement across the three core business model dimensions—value proposition, value creation and delivery, and value capture. The analysis of the various combinations of RO and managerial practices in the different value dimensions of the business model implemented by the studied companies identifies five CBMI patterns, representing recurring combinations of practices that reshape business models towards circularity. Our results show that CBMI cannot be implemented as a one-size-fits-all solution and that firms must adopt a tailored approach depending on various aspects such as size, industry, consumer segment, as well as, resource availability and motivational drivers, by implementing circular practices across multiple business model dimensions while combining various ROs to enhance circularity. These insights contribute to the literature by offering a structured three-level approach for analysing CBMI and providing actionable guidance for firms aiming to implement circular strategies. Our study highlights the need for a holistic approach that integrates business model and circular economy perspectives.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 188-202"},"PeriodicalIF":10.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144557575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-26DOI: 10.1016/j.spc.2025.06.012
Chenyu Guo , Cong Chen , Cong Dong , Shuyuan Zhao
The renewable energy power sector is widely recognized as a key driver of decarbonization, while few studies have systematically examined its embodied carbon emissions and decarbonization potential within the context of global industrial chain. This study addressed this critical gap by integrating the multi-regional input-output model, structural path analysis, multiplier-accelerator model, and row arrangement series method to investigate the embodied carbon emissions characteristics and decarbonization potential of this sector within the global industrial chain. The research findings reveal that: (i) the embodied carbon emissions at the consumption end of renewable energy increased significantly by 46.40 % from 2016 to 2022. (ii) China and the United States hold pivotal roles in the industrial chain. The typical embodied carbon emissions transmission path flows from local renewable generation to heavy industry sectors, then to end-users either directly or via intermediaries. (iii) Environmentally-friendly residential power supply and power structure optimization scenarios have substantial emission reduction effects, achieving maximum emission reductions of 1202.99 Mt. and 1156.04 Mt. (iv) The power supply structure significantly influences the carbon reduction effects of land transportation transformation. When the proportion of renewable energy is <50 %, emissions increase; however, when the renewable energy ratio reaches two-thirds, emissions can be obviously reduced by 17,157.36 kt. (v) The initial investments in renewable energy may lead to a marginal 0.30 % increase in embodied carbon emissions. These findings support the formulation of tailored policies for the low-carbon development of renewable energy across the global industrial chain, thereby providing crucial guidance for the global transition to a green energy system.
{"title":"Carbon footprints and decarbonization potential in the global renewable power sector","authors":"Chenyu Guo , Cong Chen , Cong Dong , Shuyuan Zhao","doi":"10.1016/j.spc.2025.06.012","DOIUrl":"10.1016/j.spc.2025.06.012","url":null,"abstract":"<div><div>The renewable energy power sector is widely recognized as a key driver of decarbonization, while few studies have systematically examined its embodied carbon emissions and decarbonization potential within the context of global industrial chain. This study addressed this critical gap by integrating the multi-regional input-output model, structural path analysis, multiplier-accelerator model, and row arrangement series method to investigate the embodied carbon emissions characteristics and decarbonization potential of this sector within the global industrial chain. The research findings reveal that: (i) the embodied carbon emissions at the consumption end of renewable energy increased significantly by 46.40 % from 2016 to 2022. (ii) China and the United States hold pivotal roles in the industrial chain. The typical embodied carbon emissions transmission path flows from local renewable generation to heavy industry sectors, then to end-users either directly or via intermediaries. (iii) Environmentally-friendly residential power supply and power structure optimization scenarios have substantial emission reduction effects, achieving maximum emission reductions of 1202.99 Mt. and 1156.04 Mt. (iv) The power supply structure significantly influences the carbon reduction effects of land transportation transformation. When the proportion of renewable energy is <50 %, emissions increase; however, when the renewable energy ratio reaches two-thirds, emissions can be obviously reduced by 17,157.36 kt. (v) The initial investments in renewable energy may lead to a marginal 0.30 % increase in embodied carbon emissions. These findings support the formulation of tailored policies for the low-carbon development of renewable energy across the global industrial chain, thereby providing crucial guidance for the global transition to a green energy system.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 100-122"},"PeriodicalIF":10.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Agricultural systems contribute significantly to environmental degradation and health impacts due to conventional practices such as postharvest open burning and the widespread use of chemical fertilizers. This study evaluates the potential for circular agricultural practices to mitigate these impacts in Thailand by repurposing agricultural residues for fertilizer, animal feed, and electricity. Utilizing a Life Cycle Assessment (LCA) methodology, the environmental and economic outcomes of conventional versus circular agricultural practices were quantified, focusing on key Area of Protection (AoP) including disability-adjusted life years (DALY), ecosystem damage (species.yr), and resource depletion (USD2013). The results demonstrate that conventional sugarcane and rice cultivation lead to substantial health impacts (up to 2910 DALY), significant ecosystem damage (up to 4.45 species.yr), and resource depletion costs of up to 14.9 million USD2013. In contrast, cassava cultivation, with its existing circular practices, shows comparatively lower impacts, including 415 DALY, 1.47 species.yr of ecosystem damage, and 10.4 million USD2013 of resource depletion. Circular agricultural scenarios, using crop residues to produce organic fertilizers and animal feed, proved highly effective in reducing these burdens. Circular organic fertilizers reduced total costs by 57 %, while converting residues into animal feed resulted in a net economic benefit of 1.98 billion Thai Baht (THB), representing a 137 % reduction in costs compared to the baseline. The findings highlight the importance of transitioning to circular models, emphasizing the need for policy interventions, improved technology access, and enhanced farmer training to promote circular agricultural practices in Thailand.
{"title":"Life cycle assessment of agricultural systems toward circularity","authors":"Thanakon Sukuman , Shabbir H. Gheewala , Izuru Saizen , Trakarn Prapaspongsa","doi":"10.1016/j.spc.2025.06.015","DOIUrl":"10.1016/j.spc.2025.06.015","url":null,"abstract":"<div><div>Agricultural systems contribute significantly to environmental degradation and health impacts due to conventional practices such as postharvest open burning and the widespread use of chemical fertilizers. This study evaluates the potential for circular agricultural practices to mitigate these impacts in Thailand by repurposing agricultural residues for fertilizer, animal feed, and electricity. Utilizing a Life Cycle Assessment (LCA) methodology, the environmental and economic outcomes of conventional versus circular agricultural practices were quantified, focusing on key Area of Protection (AoP) including disability-adjusted life years (DALY), ecosystem damage (species.yr), and resource depletion (USD<sub>2013</sub>). The results demonstrate that conventional sugarcane and rice cultivation lead to substantial health impacts (up to 2910 DALY), significant ecosystem damage (up to 4.45 species.yr), and resource depletion costs of up to 14.9 million USD<sub>2013</sub>. In contrast, cassava cultivation, with its existing circular practices, shows comparatively lower impacts, including 415 DALY, 1.47 species.yr of ecosystem damage, and 10.4 million USD<sub>2013</sub> of resource depletion. Circular agricultural scenarios, using crop residues to produce organic fertilizers and animal feed, proved highly effective in reducing these burdens. Circular organic fertilizers reduced total costs by 57 %, while converting residues into animal feed resulted in a net economic benefit of 1.98 billion Thai Baht (THB), representing a 137 % reduction in costs compared to the baseline. The findings highlight the importance of transitioning to circular models, emphasizing the need for policy interventions, improved technology access, and enhanced farmer training to promote circular agricultural practices in Thailand.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 203-220"},"PeriodicalIF":10.9,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-24DOI: 10.1016/j.spc.2025.06.010
Madeline C.S. Rihner , Hisham Hafez , Brant Walkley , Phil Purnell , Michal Drewniok
To meet net-zero CO2 targets by 2050, the United Kingdom (UK)’s cement and concrete sector must implement decarbonisation strategies of different readiness levels and effectiveness. These strategies have been presented thoroughly in UK and European Union decarbonisation roadmaps. However, it is challenging to predict, with confidence, whether the UK's 2050 net-zero targets are achievable. This study aims to balance the expectations placed on low-maturity (LM) and high-maturity (HM) strategies such as utilising a lower clinker factor and the use of carbon capture technologies respectively to determine a realistic route in which the UK can reach net-zero targets through a decomposition analysis of each strategy. The sector's carbon emissions were determined by performing a material flow analysis and life cycle assessment. The results showed that by 2050, 11 MtCO2eq/yr is expected to be emitted in 2050 under the business-as-usual scenario. HM strategies have an abatement potential of 4.2 MtCO2eq/yr, while LM strategies are expected to abate 3.4 MtCO2eq/yr. However, LM strategies are limited by industry's willingness to shift from current practices, while the implementation of HM strategies are impeded by financial and resource constraints. Accordingly, it is improbable for the sector to meet UK net-zero carbon targets with confidence unless the yearly concrete demand is reduced by 40 %. To enable the maximum potential of reusing the UK's building stock, direct public incentives, shifts in economic models and policy frameworks are needed.
{"title":"Thousand cuts: a realistic route to decarbonise the UK cement and concrete sector by 2050","authors":"Madeline C.S. Rihner , Hisham Hafez , Brant Walkley , Phil Purnell , Michal Drewniok","doi":"10.1016/j.spc.2025.06.010","DOIUrl":"10.1016/j.spc.2025.06.010","url":null,"abstract":"<div><div>To meet net-zero CO<sub>2</sub> targets by 2050, the United Kingdom (UK)’s cement and concrete sector must implement decarbonisation strategies of different readiness levels and effectiveness. These strategies have been presented thoroughly in UK and European Union decarbonisation roadmaps. However, it is challenging to predict, with confidence, whether the UK's 2050 net-zero targets are achievable. This study aims to balance the expectations placed on low-maturity (LM) and high-maturity (HM) strategies such as utilising a lower clinker factor and the use of carbon capture technologies respectively to determine a realistic route in which the UK can reach net-zero targets through a decomposition analysis of each strategy. The sector's carbon emissions were determined by performing a material flow analysis and life cycle assessment. The results showed that by 2050, 11 MtCO<sub>2eq</sub>/yr is expected to be emitted in 2050 under the business-as-usual scenario. HM strategies have an abatement potential of 4.2 MtCO<sub>2eq</sub>/yr, while LM strategies are expected to abate 3.4 MtCO<sub>2eq</sub>/yr. However, LM strategies are limited by industry's willingness to shift from current practices, while the implementation of HM strategies are impeded by financial and resource constraints. Accordingly, it is improbable for the sector to meet UK net-zero carbon targets with confidence unless the yearly concrete demand is reduced by 40 %. To enable the maximum potential of reusing the UK's building stock, direct public incentives, shifts in economic models and policy frameworks are needed.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 319-333"},"PeriodicalIF":10.9,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A transition towards a circular food system requires large-scale changes in citizens' food-related behaviors such as growing, purchasing, sharing, and disposing of food products in a circular manner. Existing research has largely focused on specific behaviors in isolation, neglecting how these behaviors may interplay. Moreover, it remains unclear to what extent value orientations and socio-economic characteristics predict engagement in circular food behaviors. This study addresses these gaps by collecting data from N = 955 Dutch citizens to investigate whether different clusters of circular food behaviors exist and how values and socio-economic characteristics influence participation in these clusters. Using a combination of exploratory and confirmatory factor analysis, we identify three behavioral clusters with varying levels of intentional commitment to circularity: circular waste management, circular food consumption, and regenerative food behaviors. Our findings indicate that biospheric values consistently and positively predict engagement across all clusters, while hedonic values are strong negative predictors. Socioeconomic factors, such as education level and rural residency, showed varying effects. Based on these insights, we provide suggestions for targeted policies and interventions for a broader adoption of circular food behaviors.
{"title":"Diverse paths to circularity: Clusters of circular food behaviors and their predictors","authors":"Joana Wensing , Francesca Rubiconto , Angel Lazaro , Eveline van Leeuwen","doi":"10.1016/j.spc.2025.06.016","DOIUrl":"10.1016/j.spc.2025.06.016","url":null,"abstract":"<div><div>A transition towards a circular food system requires large-scale changes in citizens' food-related behaviors such as growing, purchasing, sharing, and disposing of food products in a circular manner. Existing research has largely focused on specific behaviors in isolation, neglecting how these behaviors may interplay. Moreover, it remains unclear to what extent value orientations and socio-economic characteristics predict engagement in circular food behaviors. This study addresses these gaps by collecting data from <em>N</em> = 955 Dutch citizens to investigate whether different clusters of circular food behaviors exist and how values and socio-economic characteristics influence participation in these clusters. Using a combination of exploratory and confirmatory factor analysis, we identify three behavioral clusters with varying levels of intentional commitment to circularity: circular waste management, circular food consumption, and regenerative food behaviors. Our findings indicate that biospheric values consistently and positively predict engagement across all clusters, while hedonic values are strong negative predictors. Socioeconomic factors, such as education level and rural residency, showed varying effects. Based on these insights, we provide suggestions for targeted policies and interventions for a broader adoption of circular food behaviors.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 91-99"},"PeriodicalIF":10.9,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Circular economy principles, aimed at waste reduction and optimal resource usage, are set to increasingly utilize digital product passports (DPPs) to store sustainability and circularity-related data. However, critical questions remain regarding the types of information most crucial to facilitate Reuse, Refurbish, Repair, Remanufacturing and Recycling activities. This Information heavily depends on the intended treatment scheme like disassembly type. For instance, manual disassembly offers flexibility but is constrained by limited scalability and safety concerns, whereas robotic disassembly, although cost-efficient for repetitive tasks, is hindered by high capital costs and lacks adaptability. Flexible human-robot cooperative systems present a potential solution by balancing scalability, adaptability, and capital cost. Hence, ease of disassembly information and metrics tailored for such systems would not only benefit product designers in crafting circular designs, but also assist policymakers in assessing product circularity and aid remanufacturers in disassembly task scheduling and allocation. However, no metrics currently exist to assess the ease of disassembly when integrating both manual and robotic disassembly.
Therefore, this study addresses two key research questions: (i) What disassembly information is essential in the DPP for assessing human-robot cooperative disassembly, and (ii) Which metric effectively assesses the ease of human-robot cooperative disassembly using DPP-derived information? To answer these questions, the presented study introduces a demanufacturing cell for flexible remanufacturing systems (Re-FMS), criteria for assessing the feasibility of robotic disassembly and proposes the Robotic ease of Disassembly Metric (Re-DiM) to calculate the human-robot cooperative disassembly times. Finally, recommendations are formulated on essential ease of disassembly information required for DPPs and the applicability and effectiveness of the proposed metric is demonstrated by the application of Re-DiM metric for three distinct product groups: vacuum cleaners, e-bike batteries, and electric vehicle motors. The results present a quantitative comparison between manual and robotic disassembly times, identify the most effective disassembly approach and highlight product design challenges revealed by the metric specific to robotic disassembly for the use-case product groups.
{"title":"Sustainable production and consumption ease of robotic disassembly metric and information for digital product passports in flexible remanufacturing systems","authors":"Terrin Pulikottil , Núria Boix Rodríguez , Wouter Sterkens , Jef R. Peeters","doi":"10.1016/j.spc.2025.06.008","DOIUrl":"10.1016/j.spc.2025.06.008","url":null,"abstract":"<div><div>Circular economy principles, aimed at waste reduction and optimal resource usage, are set to increasingly utilize digital product passports (DPPs) to store sustainability and circularity-related data. However, critical questions remain regarding the types of information most crucial to facilitate Reuse, Refurbish, Repair, Remanufacturing and Recycling activities. This Information heavily depends on the intended treatment scheme like disassembly type. For instance, manual disassembly offers flexibility but is constrained by limited scalability and safety concerns, whereas robotic disassembly, although cost-efficient for repetitive tasks, is hindered by high capital costs and lacks adaptability. Flexible human-robot cooperative systems present a potential solution by balancing scalability, adaptability, and capital cost. Hence, ease of disassembly information and metrics tailored for such systems would not only benefit product designers in crafting circular designs, but also assist policymakers in assessing product circularity and aid remanufacturers in disassembly task scheduling and allocation. However, no metrics currently exist to assess the ease of disassembly when integrating both manual and robotic disassembly.</div><div>Therefore, this study addresses two key research questions: (i) What disassembly information is essential in the DPP for assessing human-robot cooperative disassembly, and (ii) Which metric effectively assesses the ease of human-robot cooperative disassembly using DPP-derived information? To answer these questions, the presented study introduces a demanufacturing cell for flexible remanufacturing systems (Re-FMS), criteria for assessing the feasibility of robotic disassembly and proposes the Robotic ease of Disassembly Metric (Re-DiM) to calculate the human-robot cooperative disassembly times. Finally, recommendations are formulated on essential ease of disassembly information required for DPPs and the applicability and effectiveness of the proposed metric is demonstrated by the application of Re-DiM metric for three distinct product groups: vacuum cleaners, e-bike batteries, and electric vehicle motors. The results present a quantitative comparison between manual and robotic disassembly times, identify the most effective disassembly approach and highlight product design challenges revealed by the metric specific to robotic disassembly for the use-case product groups.</div></div>","PeriodicalId":48619,"journal":{"name":"Sustainable Production and Consumption","volume":"58 ","pages":"Pages 123-139"},"PeriodicalIF":10.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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