Ogunmakinde, Olabode EmmanuelEgbelakin, TemitopeSher, William
13页
查看更多>>摘要：The construction industry plays an essential role in a country's economic growth. The industry has been criticised for activities and processes that generate high volumes of waste, whilst obstructing sustainable development goal (SDGs) targets. The circular economy (CE) increases waste minimisation by keeping materials and resources in a closed loop. This concept has continued to gain positive traction as a potential solution to achieve sustainable development. The authors argue that contextualising the circular economy (CE) as part of the discourse towards implementing the United Nations (UN) SDGs Agenda 2030 is crucial for managing the increasing amounts of waste generated by the construction industry. This paper provides a framework that establishes a detailed relationship between the SDGs, construction waste management and the CE to direct future sustainable development research, policies, and innovations. The study adopted a narrative literature review methodology. Scopus and Web of Science were scoured for relevant literature published between 2015 and 2021. Initially 65 articles were identified with this number being reduced to 24 following a detailed inspection of their applicability to the study. The findings from the articles were summarized, synthesized, and incorporated into the study. A key theme that emerged was that an understanding of the SDGs-circular economy linkages in construction waste management is integral to establishing long-term innovative solutions for developing multi-sectorial measures for waste prevention, eco-design, and re-use of materials. These linkages increase competitiveness, stimulate innovation, and boost economic growth. This study proposes that all stakeholders who generate waste should apply new innovative technologies, methods and strategies leading to transdisciplinary and transformative change.
Cooreman-Algoed, MargotBoone, LieselotTaelman, Sue EllenVan Hemelryck, Steven...
11页
查看更多>>摘要：The relationship between consumer behaviour, food-packaging system, and food loss and waste (FLW) has often been overlooked within environmental sustainability assessments of food products. The aim of this study was twofold: (1) to quantify the food and packaging flows of the combination of four packed chicken products and four types of household behaviour using material flow analysis, and (2) to assess the environmental profile of these combinations through life cycle assessment (LCA) within a Flemish (Belgian) context. The household behaviours described different household chicken meat waste percentages and particular household actions (e.g. storage location). The life cycle stages entailed chicken farm, poultry processing, meat cutting and packaging, distribution, retail, consumer, and end-of-life. The impact assessment method was the Environmental Footprint (2.0). The food yield-the ratio of the food amount consumed by its intended user and that entering meat cutting and packaging-of all combinations was 79.1-97.3%. The behaviour of major wasters increased the environmental impact of the food chain by 8.4% compared to the non-wasters. The impact of the product with the worst score, i.e. diced chicken breast 0.5 kg, rose 9.6% compared to the product with the best score, chicken breasts 0.5 kg. In case of the major wasters, the impact of FLW was higher by a factor of ten higher than those of the packaging materials. The single score of the average Flemish consumer or weighted average was 2.3-4.0% higher than non-wasters depending on the chicken product. These results highlight the importance of including household behaviour, FLW and packaging within food LCA research.
查看更多>>摘要：Resource efficiency was selected as an important SDG indicator because it is closely related to resource utilization with its environmental impacts. Considering China's massive resource consumption and great environmental pressure, we need to understand the status of resource utilization by exploring the resource efficiency of China. Resource consumption per unit of GDP (also called resource intensity) is an indicator that can be utilized to measure resource efficiency. In this study, we analyze the drivers of China's resource intensity changes from 1997 to 2017 using the structural decomposition analysis (SDA) method based on an input-output model. Furthermore, we calculate the resource intensity of various sectors in China. The results show that China's total resource intensity dropped by 20% from 1997 to 2017. The direct distribution effect of resource intensity is the strongest contributor to the decline in total resource intensity, while input structure is the biggest obstacle. Among all the sectors, the construction sector has the largest resource intensity. Our findings can support the implementation of relevant policies during the 14th Five-Year Plan period from the perspectives of supply, production, and demand sides. 1) Reducing the inflow of non-metallic minerals to the construction sector to optimize the supply structure. 2) Implementing green transformation of the construction sector by using more environmentally friendly and recyclable building materials, upgrading technology and strengthening policy supervision. 3) Encouraging the consumption of low-resource-intensity products, the reduction of food waste and the development of a green diet structure.
NSTL
Elsevier