Pub Date : 2023-06-29DOI: 10.3389/frsus.2023.1105846
E. B. Ntawuhiganayo, Elke Nijman-Ross, Tom Geme, Doryn Negesa, Samuel Nahimana
Food security remains a challenge for Africa and regenerative agricultural practices can play an important role in building resilience while sustaining agricultural production and preserving diversity of ingredients and rich biodiversity. This study conducted surveys in eight regions in East Africa, four in Rwanda and four in Kenya, to understand how circular principles are applied in agriculture, potential drivers of the adoption of regenerative agriculture and its contribution to household food security. A binary logistic regression model was used to capture the influence of independent variables on the adoption of regenerative agricultural practices and determining factors of household food security. The findings suggest that farming households engage in less than four different practices, mainly in less labor-intensive practices such as crop rotation and intercropping. Household food security increased with an increased number of regenerative agricultural practices applied by the household and increased frequency of farm visits by extension agents. Regenerative agriculture practices, when applied in combinations, have the potential to increase household food security. This study recommends designing scaling-up pathways to accelerate the transition to regenerative agriculture and build a more resilient food system in East Africa.
{"title":"Assessing the adoption of regenerative agricultural practices in Eastern Africa","authors":"E. B. Ntawuhiganayo, Elke Nijman-Ross, Tom Geme, Doryn Negesa, Samuel Nahimana","doi":"10.3389/frsus.2023.1105846","DOIUrl":"https://doi.org/10.3389/frsus.2023.1105846","url":null,"abstract":"Food security remains a challenge for Africa and regenerative agricultural practices can play an important role in building resilience while sustaining agricultural production and preserving diversity of ingredients and rich biodiversity. This study conducted surveys in eight regions in East Africa, four in Rwanda and four in Kenya, to understand how circular principles are applied in agriculture, potential drivers of the adoption of regenerative agriculture and its contribution to household food security. A binary logistic regression model was used to capture the influence of independent variables on the adoption of regenerative agricultural practices and determining factors of household food security. The findings suggest that farming households engage in less than four different practices, mainly in less labor-intensive practices such as crop rotation and intercropping. Household food security increased with an increased number of regenerative agricultural practices applied by the household and increased frequency of farm visits by extension agents. Regenerative agriculture practices, when applied in combinations, have the potential to increase household food security. This study recommends designing scaling-up pathways to accelerate the transition to regenerative agriculture and build a more resilient food system in East Africa.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122864180","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}
Pub Date : 2023-06-22DOI: 10.3389/frsus.2023.1213198
T. Fortibuoni, J. Jambeck, B. D. Hardesty, A. M. Addamo, O. C. Basurko
{"title":"Editorial: The sustainability series: the plastics problem - pathways towards sustainable solutions against plastic pollution","authors":"T. Fortibuoni, J. Jambeck, B. D. Hardesty, A. M. Addamo, O. C. Basurko","doi":"10.3389/frsus.2023.1213198","DOIUrl":"https://doi.org/10.3389/frsus.2023.1213198","url":null,"abstract":"","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114237684","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}
Pub Date : 2023-06-22DOI: 10.3389/frsus.2023.1148685
Emelia Delaney, Wei Liu
Introduction Sustainability has remained an important issue within academia and industry, with more recent focus on sustainability education to ensure that future generations are equipped with the knowledge to continue and champion sustainable outcomes. The design and innovation industry has been continuously identified as important by academia, for having high impact on the potential sustainability of products and services during their development. However, little research focuses on the pre-professional education of designers and whether they receive an appropriate education on sustainable issues in relation to their industry. Methods This study investigated these issues within the context of United Kingdom-based postgraduate design courses, to determine the current state of sustainability education as well as the impact of government resources and policies on encouraging sustainability education. Courses were identified utilizing online databases and were evaluated using Sterling's model “Levels of Response to Sustainability Education” to understand the current approach to sustainability within design education, including content and pedagogy, offering recommendations for improvement. Results Courses were evaluated against Sterling's model “Levels of Response to Sustainability Education”, which enabled the understanding of the current state of higher education and sustainability education with Postgraduate design courses in the UK. Following this review, a model for upgrading sustainability education is proposed. Discussion Around 80% of the courses identified throughout this study were ranked as “weak” or “very weak” according to Sterling's model, the proposed model highlights several strategies to aid postgraduate design courses to progress to the “strong” level. The framework model focuses on various sustainability themes to be included within postgraduate design education, teaching methods, as well as the inclusion of a dedicated student reflection period to improve and adapt the sustainability teaching.
{"title":"Postgraduate design education and sustainability—An investigation into the current state of higher education and the challenges of educating for sustainability","authors":"Emelia Delaney, Wei Liu","doi":"10.3389/frsus.2023.1148685","DOIUrl":"https://doi.org/10.3389/frsus.2023.1148685","url":null,"abstract":"Introduction Sustainability has remained an important issue within academia and industry, with more recent focus on sustainability education to ensure that future generations are equipped with the knowledge to continue and champion sustainable outcomes. The design and innovation industry has been continuously identified as important by academia, for having high impact on the potential sustainability of products and services during their development. However, little research focuses on the pre-professional education of designers and whether they receive an appropriate education on sustainable issues in relation to their industry. Methods This study investigated these issues within the context of United Kingdom-based postgraduate design courses, to determine the current state of sustainability education as well as the impact of government resources and policies on encouraging sustainability education. Courses were identified utilizing online databases and were evaluated using Sterling's model “Levels of Response to Sustainability Education” to understand the current approach to sustainability within design education, including content and pedagogy, offering recommendations for improvement. Results Courses were evaluated against Sterling's model “Levels of Response to Sustainability Education”, which enabled the understanding of the current state of higher education and sustainability education with Postgraduate design courses in the UK. Following this review, a model for upgrading sustainability education is proposed. Discussion Around 80% of the courses identified throughout this study were ranked as “weak” or “very weak” according to Sterling's model, the proposed model highlights several strategies to aid postgraduate design courses to progress to the “strong” level. The framework model focuses on various sustainability themes to be included within postgraduate design education, teaching methods, as well as the inclusion of a dedicated student reflection period to improve and adapt the sustainability teaching.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122578067","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}
Pub Date : 2023-06-20DOI: 10.3389/frsus.2023.1237154
P. Glavič, Diana Gregory‐Smith, F. Murmura, O. Olayide, I. Djekić
{"title":"Editorial: Organizational and consumption perspectives on sustainable food culture","authors":"P. Glavič, Diana Gregory‐Smith, F. Murmura, O. Olayide, I. Djekić","doi":"10.3389/frsus.2023.1237154","DOIUrl":"https://doi.org/10.3389/frsus.2023.1237154","url":null,"abstract":"","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684877","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}
Pub Date : 2023-06-20DOI: 10.3389/frsus.2023.1116359
R. Rodríguez-García, Idoya Ferrero-Ferrero, M. A. Fernández-Izquierdo
There is a worldwide consensus that sustainability is the main basis for the recovery of tourism. In this context, tools and standards play an important role to facilitate the integration of the principles of sustainable tourism in practice. Within the tourism sector, the hotel industry is one of the key industries with a high growth rate. The main objective is to carry out an analysis based on the concept of sustainability in the sustainability certifications of the hotel industry, delving into those certifications adopted by the large hotel companies. For this purpose, a comparative analysis of the certification criteria is carried out using as a basis the World Sustainable Tourism Council (GSTC). This article evidences the primacy of the environmental dimension and establishes recommendations that guide holistic and integrated sustainability strategies from a comprehensive perspective that allow the recovery of tourism in general and the sustainable hotel industry in particular.
{"title":"Analysis of integration of sustainability in sustainability certifications in the hotel industry","authors":"R. Rodríguez-García, Idoya Ferrero-Ferrero, M. A. Fernández-Izquierdo","doi":"10.3389/frsus.2023.1116359","DOIUrl":"https://doi.org/10.3389/frsus.2023.1116359","url":null,"abstract":"There is a worldwide consensus that sustainability is the main basis for the recovery of tourism. In this context, tools and standards play an important role to facilitate the integration of the principles of sustainable tourism in practice. Within the tourism sector, the hotel industry is one of the key industries with a high growth rate. The main objective is to carry out an analysis based on the concept of sustainability in the sustainability certifications of the hotel industry, delving into those certifications adopted by the large hotel companies. For this purpose, a comparative analysis of the certification criteria is carried out using as a basis the World Sustainable Tourism Council (GSTC). This article evidences the primacy of the environmental dimension and establishes recommendations that guide holistic and integrated sustainability strategies from a comprehensive perspective that allow the recovery of tourism in general and the sustainable hotel industry in particular.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130565386","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}
Pub Date : 2023-06-16DOI: 10.3389/frsus.2023.1205680
Roosa Karvonen, Ilkka Ratinen, Ulla Kemi
There is an urgent need for a global sustainability transition. This change needs to be cultural and transform both our actions and the values on which we base our decision-making. Sustainability transition requires concentrating on future generations as well as on the people teaching them because class teachers have an impact on their pupils' knowledge, skills, values, and attitudes. Therefore, class teachers need new competency to make sustainability transformation in schools happen. Teachers also need to possess a sufficient level of self-efficacy beliefs, as they strongly impact a teacher's ability to manage their job as a sustainability educator. This survey research studied Finnish class student teachers' (N = 166) perceptions about their sustainability competency and self-efficacy in education for sustainable development. Students' perceptions of their sustainability competency were clustered into one weighted sum variable. Three principal components were constructed with principal component analysis (PCA) to describe the students' self-efficacy beliefs in education for sustainable development. A PCA paired with linear hierarchical regression analysis was conducted to explain the variation in students' sustainability competency perceptions. The results indicated that the combined self-efficacy beliefs in teaching values and ethics and systems thinking explained 19.3% of the variation in class student teachers' sustainability competency. As a result, improving class student teachers' self-efficacy beliefs about teaching ethics and values and systems thinking in the Finnish context can improve their sustainability competency and vice versa. To promote the sustainability competency of class student teachers, it is necessary to be aware of this connection when developing class teacher education.
{"title":"Promoting sustainability competency and self-efficacy in class teacher education","authors":"Roosa Karvonen, Ilkka Ratinen, Ulla Kemi","doi":"10.3389/frsus.2023.1205680","DOIUrl":"https://doi.org/10.3389/frsus.2023.1205680","url":null,"abstract":"There is an urgent need for a global sustainability transition. This change needs to be cultural and transform both our actions and the values on which we base our decision-making. Sustainability transition requires concentrating on future generations as well as on the people teaching them because class teachers have an impact on their pupils' knowledge, skills, values, and attitudes. Therefore, class teachers need new competency to make sustainability transformation in schools happen. Teachers also need to possess a sufficient level of self-efficacy beliefs, as they strongly impact a teacher's ability to manage their job as a sustainability educator. This survey research studied Finnish class student teachers' (N = 166) perceptions about their sustainability competency and self-efficacy in education for sustainable development. Students' perceptions of their sustainability competency were clustered into one weighted sum variable. Three principal components were constructed with principal component analysis (PCA) to describe the students' self-efficacy beliefs in education for sustainable development. A PCA paired with linear hierarchical regression analysis was conducted to explain the variation in students' sustainability competency perceptions. The results indicated that the combined self-efficacy beliefs in teaching values and ethics and systems thinking explained 19.3% of the variation in class student teachers' sustainability competency. As a result, improving class student teachers' self-efficacy beliefs about teaching ethics and values and systems thinking in the Finnish context can improve their sustainability competency and vice versa. To promote the sustainability competency of class student teachers, it is necessary to be aware of this connection when developing class teacher education.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"74 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127263405","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}
Pub Date : 2023-06-15DOI: 10.3389/frsus.2023.1167713
Muhammad Zeeshan, M. Kidder, Emily B. Pentzer, R. Getman, B. Gurkan
The rapid development of direct air capture (DAC) technologies has become critical in order to remove CO2 from the atmosphere and limit global warming to a maximum of 1.5°C. In this perspective, we provide a mini review of the current research on the emerging liquid- and solid-based sorbent materials to capture CO2, summarize the existing challenges of DAC technologies, and suggest future research directions to accelerate the development of DAC systems. In particular, the desired properties for a breakthrough sorbent that efficiently captures CO2 from the air and releases it for sequestration are described.
{"title":"Direct air capture of CO2: from insights into the current and emerging approaches to future opportunities","authors":"Muhammad Zeeshan, M. Kidder, Emily B. Pentzer, R. Getman, B. Gurkan","doi":"10.3389/frsus.2023.1167713","DOIUrl":"https://doi.org/10.3389/frsus.2023.1167713","url":null,"abstract":"The rapid development of direct air capture (DAC) technologies has become critical in order to remove CO2 from the atmosphere and limit global warming to a maximum of 1.5°C. In this perspective, we provide a mini review of the current research on the emerging liquid- and solid-based sorbent materials to capture CO2, summarize the existing challenges of DAC technologies, and suggest future research directions to accelerate the development of DAC systems. In particular, the desired properties for a breakthrough sorbent that efficiently captures CO2 from the air and releases it for sequestration are described.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"56 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131671923","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}
Pub Date : 2023-06-13DOI: 10.3389/frsus.2023.1158079
J. Rinkinen, E. Shove
Accounts of the circular economy deal with lives of objects mainly through notions of repair, sharing and re-use. This has led to problems associated with contemporary discourses of circularity including the tendency to focus on goods in isolation, and to overlook longer term trends in demand. Drawing from studies of material culture and practice, in this Perspective article we make the case for a more subtle analysis of practices and “object relations”. This allows us to engage with basic questions about production, consumption, and the constitution of need–questions that should be integral to contemporary debates about the circular economy, but that are sidelined in what remains classically economistic discussions of substitution, manufacturing, and waste.
{"title":"Material culture and the circular economy","authors":"J. Rinkinen, E. Shove","doi":"10.3389/frsus.2023.1158079","DOIUrl":"https://doi.org/10.3389/frsus.2023.1158079","url":null,"abstract":"Accounts of the circular economy deal with lives of objects mainly through notions of repair, sharing and re-use. This has led to problems associated with contemporary discourses of circularity including the tendency to focus on goods in isolation, and to overlook longer term trends in demand. Drawing from studies of material culture and practice, in this Perspective article we make the case for a more subtle analysis of practices and “object relations”. This allows us to engage with basic questions about production, consumption, and the constitution of need–questions that should be integral to contemporary debates about the circular economy, but that are sidelined in what remains classically economistic discussions of substitution, manufacturing, and waste.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"425 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124220453","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}
Pub Date : 2023-06-12DOI: 10.3389/frsus.2023.1203457
Flávia da Silva Müller Teixeira, Augusto Peres, Elen B. A. V. Pacheco
Introduction Acrylonitrile-butadiene-styrene copolymer (ABS) and high impact polystyrene (HIPS) are plastics typically found in waste electrical and electronic equipment (WEEE or e-waste). As such, recycling is a beneficial method for reintroducing polymeric materials from electrical and electronic equipment to the same production cycle. This study aimed to investigate mechanical recycling of ABS and HIPS from WEEE reprocessed six times, totaling 24 cycles. Methods Reprocessing was performed by extrusion and test specimens were obtained by injection. The technical aspects assessed before and after reprocessing were mechanical properties (tensile, flexural and impact strength), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR) and melt flow index (MFI), compared with those of reprocessed virgin polymeric materials. The environmental aspect was evaluated by monitoring energy consumption and solid waste generation during each reprocessing cycle. Results Average energy consumption per extrusion and injection cycle was 0.7 and 2.0 kW/kg, respectively. There was a 30% increase in MFI from the first to sixth reprocessing cycle for virgin HIPS (5.5 g/10 min in 200°C and 5 kg), the largest among the polymers. The values for virgin ABS (6.0 g/10 min in 200°C and 5 kg) and ABS and HIPS from WEE increased by 11–15% from the first to sixth cycle. Impact strength was affected from the second reprocessing cycle onwards for ABS e-waste (14% decrease) and in the fifth cycle (16% decrease) for HIPS e-waste. Discussion The thermal, tensile and flexural properties of the virgin and post-consumer materials remained almost unchanged as the number of reprocessing cycles increased, indicating that these materials have the potential and properties for reintroduction into the same production cycle.
{"title":"Mechanical recycling of acrylonitrile-butadiene-styrene copolymer and high impact polystyrene from waste electrical and electronic equipment to comply with the circular economy","authors":"Flávia da Silva Müller Teixeira, Augusto Peres, Elen B. A. V. Pacheco","doi":"10.3389/frsus.2023.1203457","DOIUrl":"https://doi.org/10.3389/frsus.2023.1203457","url":null,"abstract":"Introduction Acrylonitrile-butadiene-styrene copolymer (ABS) and high impact polystyrene (HIPS) are plastics typically found in waste electrical and electronic equipment (WEEE or e-waste). As such, recycling is a beneficial method for reintroducing polymeric materials from electrical and electronic equipment to the same production cycle. This study aimed to investigate mechanical recycling of ABS and HIPS from WEEE reprocessed six times, totaling 24 cycles. Methods Reprocessing was performed by extrusion and test specimens were obtained by injection. The technical aspects assessed before and after reprocessing were mechanical properties (tensile, flexural and impact strength), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR) and melt flow index (MFI), compared with those of reprocessed virgin polymeric materials. The environmental aspect was evaluated by monitoring energy consumption and solid waste generation during each reprocessing cycle. Results Average energy consumption per extrusion and injection cycle was 0.7 and 2.0 kW/kg, respectively. There was a 30% increase in MFI from the first to sixth reprocessing cycle for virgin HIPS (5.5 g/10 min in 200°C and 5 kg), the largest among the polymers. The values for virgin ABS (6.0 g/10 min in 200°C and 5 kg) and ABS and HIPS from WEE increased by 11–15% from the first to sixth cycle. Impact strength was affected from the second reprocessing cycle onwards for ABS e-waste (14% decrease) and in the fifth cycle (16% decrease) for HIPS e-waste. Discussion The thermal, tensile and flexural properties of the virgin and post-consumer materials remained almost unchanged as the number of reprocessing cycles increased, indicating that these materials have the potential and properties for reintroduction into the same production cycle.","PeriodicalId":253319,"journal":{"name":"Frontiers in Sustainability","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114993322","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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