| 1. |
- Almusaed, Amjad, 1967-, et al.
(författare)
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Assessing the Impact of Recycled Building Materials on Environmental Sustainability and Energy Efficiency : A Comprehensive Framework for Reducing Greenhouse Gas Emissions
- 2024
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Ingår i: Buildings. - : MDPI. - 2075-5309. ; 14:6
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Tidskriftsartikel (refereegranskat)abstract
- In this study, we critically examine the potential of recycled construction materials, focusing on how these materials can significantly reduce greenhouse gas (GHG) emissions and energy usage in the construction sector. By adopting an integrated approach that combines Life Cycle Assessment (LCA) and Material Flow Analysis (MFA) within the circular economy framework, we thoroughly examine the lifecycle environmental performance of these materials. Our findings reveal a promising future where incorporating recycled materials in construction can significantly lower GHG emissions and conserve energy. This underscores their crucial role in advancing sustainable construction practices. Moreover, our study emphasizes the need for robust regulatory frameworks and technological innovations to enhance the adoption of environmentally responsible practices. We encourage policymakers, industry stakeholders, and the academic community to collaborate and promote the adoption of a circular economy strategy in the building sector. Our research contributes to the ongoing discussion on sustainable construction, offering evidence-based insights that can inform future policies and initiatives to improve environmental stewardship in the construction industry. This study aligns with the European Union’s objectives of achieving climate-neutral cities by 2030 and the United Nations’ Sustainable Development Goals outlined for completion by 2030. Overall, this paper contributes to the ongoing dialogue on sustainable construction, providing a fact-driven basis for future policy and initiatives to enhance environmental stewardship in the industry.
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| 2. |
- Carpejani, Pablo, et al.
(författare)
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Affordable and Clean Energy: A Study on the Advantages and Disadvantages of the Main Modalities
- 2020
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Ingår i: World Sustainability Series. - Cham : Springer International Publishing. - 2199-7373 .- 2199-7381. ; , s. 615-627, s. 615-627
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The purpose of this study is to identify several renewable and clean energy sources and investigate their accessibility. The structuring of the energetic sources was outlined to display the advantages and disadvantages of their use. To do so, the literature review method and the snowball method were used as the research methodology. Previous results had determined the elements of a sample of the main existing forms of energy. Therefore, this research analysed the following sources: solar energy, wind energy, hydroelectric power, thermoelectric energy with renewable fuels, tidal energy, biogas energy, geothermal energy and hydrogen energy. The results discuss the benefits of using sustainable energies, such as being helpful to the environment, aswell as the implementation obstacles that, in this case, are stripped down to the high financial cost of initial investment. Because no previous research provided a structure to compare different energy forms, this study is expected to act as an initial guide for researchers and professionals in the field. As a limitation and recommendation for future research efforts, it is suggested to discover and verify mechanisms capable of reducing the high initial investment costs associated with sustainable energies.
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| 3. |
- Gren, Ing-Marie, et al.
(författare)
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Costs of air pollutants from shipping : a meta-regression analysis
- 2020
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Ingår i: Transport reviews. - : Taylor & Francis. - 0144-1647 .- 1464-5327. ; 40:4, s. 411-428
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Tidskriftsartikel (refereegranskat)abstract
- This study estimated the external cost of air pollution from shipping by means of a meta-regression analysis, which has not been made before. Three pollutants, which were included in most of the primary studies, were considered: nitrogen oxides (NOx), sulphur dioxides (SO2) and particulate matters with a diameter of max 2.5 micrometres (PM2.5). All primary studies included damages of health and a majority added impacts on agriculture and estimated the cost of air pollutants by transferring cost estimates from studies on costs of air emissions from transports in Europe. Different regression models and estimators were used and robust results were found of statistically significant emission elasticities of below one, i.e. total external costs increase by less than 1% when emissions increase by 1%. There was a small variation between the pollutants, with the highest elasticity for PM2.5 and lowest for NOx. Calculations of the marginal external cost of the pollutants showed the same pattern, with this cost being approximately six times higher for PM2.5 than for the other pollutants. Common to all pollutants was that the marginal external cost decreases when emission increases. Another robust result was a significant increase in the cost of studies published in journals compared with other publication outlets. These findings point out some caution when transferring constant external unit cost of air pollutant from shipping, which is much applied in the literature, and the cost functions estimated in this study could thus provide a complementary transfer mechanism.
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