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  • 1.
    Cui, Qing
    et al.
    KTH, Skolan för industriell teknik och management (ITM), Industriell ekologi.
    Brandt, Nils
    KTH, Skolan för industriell teknik och management (ITM), Industriell ekologi.
    Sinha, Rajib
    KTH, Skolan för industriell teknik och management (ITM), Industriell ekologi.
    Malmström, Maria E.
    KTH, Skolan för industriell teknik och management (ITM), Industriell ekologi.
    Copper content in lake sediments as a tracer of urban emissions: evaluation through a source-transport-storage model2010Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 408, nr 13, s. 2714-2725Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A coupled source-transport-storage model was developed to determine the origin and path of copper from materials/goods in use in the urban drainage area and the fate of copper in local recipient lakes The model was applied and tested using five small lakes in Stockholm, Sweden. In the case of the polluted lakes Racksta Trask, Trekanten and Langsjon, the source strengths of copper identified by the model were found to be well linked with independently observed copper contents in the lake sediments through the model. The model results also showed that traffic emissions, especially from brake linings, dominated the total load in all five cases Sequential sedimentation and burial proved to be the most important fate processes of copper in all lakes, except Racksta Trask, where outflow dominated The model indicated that the sediment copper content can be used as a tracer of the urban diffuse copper source strength, but that the response to changes in source strength is fairly slow (decades) Major uncertainties in the source model were related to management of stormwater in the urban area, the rate of wear of brake linings and weathering of copper roofs The uncertainty of the coupled model is in addition affected mainly by parameters quantifying the sedimentation and bury processes, such as particulate fraction, settling velocity of particles, and sedimentation rate As a demonstration example, we used the model to predict the response of the sediment copper level to a decrease in the copper load from the urban catchment in one of the case study lakes (C) 2010 Elsevier B.V All rights reserved

  • 2.
    Franzen, Frida
    et al.
    Tyrens AB, Folkungagatan 44, 118 86, Stockholm, Sweden.
    Strand, Åsa
    IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute, Kristineberg 566, 451 78, Fiskebäckskil, Sweden.
    Stadmark, Johanna
    IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute, Box 530 21, 400 14, Gothenburg, Sweden.
    Ingmansson, Ida
    Tyrens AB, Folkungagatan 44, 118 86, Stockholm, Sweden.
    Thomas, Jean-Baptiste
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Söderqvist, Tore
    Anthesis Enveco AB, Barnhusgatan 4, 111 23, Stockholm, Sweden; Holmboe & Skarp AB, Norr Källstavägen 9, 148 96, Sorunda, Sweden.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Gröndahl, Fredrik
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Hasselström, Linus
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Governance hurdles for expansion of low trophic mariculture production in Sweden2024Inngår i: Ambio, ISSN 0044-7447, E-ISSN 1654-7209Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The study examines the governance of low trophic species mariculture (LTM) using Sweden as a case study. LTM, involving species such as seaweeds and mollusks, offers ecosystem services and nutritious foods. Despite its potential to contribute to blue growth and Sustainable Development Goals, LTM development in the EU and OECD countries has stagnated. A framework for mapping governance elements (institutions, structures, and processes) and analyzing governance objective (effective, equitable, responsive, and robust) was combined with surveys addressed to the private entrepreneurs in the sector. Analysis reveals ineffective institutions due to lack of updated legislation and guidance, resulting in ambiguous interpretations. Governance structures include multiple decision-making bodies without a clear coordination agency. Licensing processes were lengthy and costly for the private entrepreneurs, and the outcomes were uncertain. To support Sweden’s blue bioeconomy, LTM governance requires policy integration, clearer direction, coordinated decision-making, and mechanisms for conflict resolution and learning.

    Fulltekst (pdf)
    fulltext
  • 3.
    Frostell, Björn M.
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Assefa, Getachew
    Olsson, Lars E.
    Modeling both direct and indirect environmental load of purchase decisions: a web-based tool addressing household metabolism2015Inngår i: Environmental Modelling & Software, ISSN 1364-8152, E-ISSN 1873-6726, Vol. 71, s. 138-147Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Consumer awareness is continuously increasing towards pro-environmental behavior. Thus, we developed a web-based environmental feedback tool EcoRunner, which is designed for Swedish households aiming at increasing the awareness in a more pro-environmental direction. The conceptual model of EcoRunner has been developed based on top-down and bottom-up approaches connecting economic activities within a household to environmental pressures (both direct and indirect). In addition, the development of the tool includes a multi-level model aiming at better tailor-made advice to consumers. In this paper, we examine the EcoRunner tool with average single Swedish household expenditures as well as explore options for reductions and systems effects. Analysis shows that food and non-alcoholic beverages, fuel for personal transport (e.g. car) and air transports have significant environmental pressures. In addition, this study suggests that EcoRunner could be used in education systems as an environmental feedback tool to enlighten consumers motivation and change consumption patterns.

  • 4.
    Henrysson, Maryna
    et al.
    KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Energisystem.
    Papageorgiou, Asterios
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Björklund, Anna
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Samhällsplanering och miljö. KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Hållbarhet, utvärdering och styrning.
    Vanhuyse, Fedra
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Monitoring progress towards a circular economy in urban areas: An application of the European Union circular economy monitoring framework in Umeå municipality2022Inngår i: Sustainable cities and society, ISSN 2210-6707, Vol. 87, s. 104245-104245, artikkel-id 104245Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    As cities worldwide implement strategies to accelerate the transition toward a circular economy (CE), there is an increasing need for tools to monitor progress. However, a standardised metric for CE monitoring in urban areas is lacking. This study examines the potential of the EU Circular Economy Monitoring Framework (CEMF), an established indicator-based framework for measuring national- and EU-level circularity performance, as a monitoring tool for urban areas. For this purpose, available data sources that can support the framework's application at the urban level are mapped, and data quality is assessed following the pedigree matrix approach. Next, the CEMF indicators are computed for the urban area of Umeå, Sweden. The mapping showed limited availability of urban-level data, necessitating the downscaling of national-level data using proxy factors. Most available urban-level data are of high quality, while the quality of national-level data is reduced when used to compute indicators at the urban level. The application of the CEMF in Umeå indicates that there are areas where the municipality performs well, though further improvements are needed. We conclude that the CEMF has potential as a monitoring tool for urban areas. However, improvements in CEMF...s scope and data availability are recommended.

    Fulltekst (pdf)
    fulltext
  • 5.
    Laurenti, Rafael
    et al.
    KTH, Skolan för industriell teknik och management (ITM), Maskinkonstruktion (Inst.), Integrerad produktutveckling. HERUS Laboratory for Human Environment Relations in Urban Systems, EPFL Swiss Federal Institute of Technology Lausanne, 1015 Lausanne, Switzerland.
    Singh, Jagdeep
    The International Institute for Industrial Environmental Economics (IIIEE), Lund University, 221 00 Lund, Sweden.
    Cotrim, Joao
    ISCTE-IUL Business School, University of Lisbon, 1649-004 Lisbon, Portugal.
    Toni, Martina
    Department of Business Studies, University of Roma Tre, 00154 Roma, Italy.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Characterizing the Sharing Economy State of the Research: a Systematic Map2019Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 11, nr 20, artikkel-id 5729Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    The sharing economy is an emerging niche for innovation capable of disrupting established socio-technical and economic regimes. Because of this potential to cause radical changes in a wide array of domains, research in multiple disciplines addressing various aspects entailing this phenomenon is proliferating. In this emerging body of literature, the understanding and framing of the sharing economy are often different. Without knowledge about the current state of the research related to the sharing economy, delineating research trends, gaps, and needs for directing effectively primary research are not possible. This study aimed to synthesize the state and distribution of existing publications related to the sharing economy in multiple disciplines. We used the systematic mapping technique to scope, identify, and classify the publications at a fine level of granularity. We reviewed 589 journal articles (published from 1978 to 2017), and 454 met the selection criteria. The journal articles reviewed were published in 284 different journals. Intriguingly, 15 journals published five to 13 publications each and 221 journals had a single article about the topic. Journals belonging to the subject areas “business, management and accounting” (42.1%) and “social sciences” (35.2%) published more than 70% of the reviewed publications. Accommodation (19.8%) and car and ridesharing (17.2%) were the two most prominent sectors; 50.2% of the publications addressed C2C transactions (10.6% B2C, 24.4% more than one type); 62.3% were about accessing resources, and 5.1% concerned transfer of ownership (i.e., second-hand or donation); and 19.2% covered access and transfer of ownership simultaneously. While empirical studies were the majority (53.1%, when comparing with conceptual ones), qualitative approaches were most common (51.5% against 24.9% quantitative and 17.4% mixed methods). Literature review (22.9%), survey (13.2%), case study (7.3%) and interview (7%) were the most frequently used methods. User behavior (26.4%), business models and organizational aspects (22.7%), institution and governance system (18.7%), conceptualization matters (17%), and sustainability evaluation (15.3%) are research clusters identified from a grounded approach. The link between user behavior and net environmental impacts of sharing options was the largest gap found in the research needing attention from a sustainability perspective. Accordingly, multidisciplinary investigations quantifying behavioral root causes, magnitude, and likelihood of environmental rebound effects using real-world data are strongly encouraged.

    Fulltekst (pdf)
    fulltext
  • 6.
    Laurenti, Rafael
    et al.
    KTH, Skolan för industriell teknik och management (ITM), Maskinkonstruktion (Inst.), Integrerad produktutveckling. EPFL Swiss Fed Inst Technol Lausanne, ENAC Sch Architecture Civil & Environm Engn, HERUS Lab Human Environm Relat Urban Syst, GR C1 455,Batiment GR,Stn 2, CH-1015 Lausanne, Switzerland.;IVL Swedish Environm Res Inst, Valhallavagen 81, S-11427 Stockholm, Sweden..
    Singh, Jagdeep
    Lund Univ, IIIEE, Tegnersplatsen 4, S-22100 Lund, Sweden..
    Frostell, Björn
    Ecoloop AB, S-11646 Stockholm, Sweden..
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Binder, Claudia R.
    EPFL Swiss Fed Inst Technol Lausanne, ENAC Sch Architecture Civil & Environm Engn, HERUS Lab Human Environm Relat Urban Syst, GR C1 455,Batiment GR,Stn 2, CH-1015 Lausanne, Switzerland..
    The Socio-Economic Embeddedness of the Circular Economy: An Integrative Framework2018Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 10, nr 7, artikkel-id 2129Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Global economies have been characterised by a large dependency of material inflows from natural stocks, an exponential growth of material stock-in-use in the built environment, and the extensive disposal of waste material outflows to anthropogenic sinks. In this context, the concept of the circular economy has emerged, promising to circulate the stock-in-use of materials and transforming output waste material flows back into useful resources while promoting job and value creation. These promises have drawn the attention and interest of policymakers and industry, and gained popularity across society. Despite its apparent emergent legitimacy and diffusion, a few essential adjustments still need to be addressed so that circular economy initiatives can actually deliver on their promises without leading to negative unintended effects. First, a complete entanglement with the existing formal economy is fundamentally needed; this implies valuing the preservation of natural stocks and pricing material input flows adequately. Secondly, a recognition of its socio-economic embeddedness is essentially necessary. The decision-making of societal actors affects material configuration, which in turn affects societal actors; this important feedback loop needs to be explicitly taken into account in circular economy initiatives. The aim of this short communication paper is to explore these pervasive challenges in a broad context of sustainable physical resource management. An integrative framework for recognising the socio-economic embeddedness of the circular economy in practice and the role of the formal economic system in realising its ambitions is proposed.

    Fulltekst (pdf)
    fulltext
  • 7.
    Laurenti, Rafael
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi. IVL Swedish Environmental Research Institute, Sweden.
    Singh, Jagdeep
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Potting, Josepha
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Miljöstrategisk analys (fms).
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Unintended environmental consequences of improvement actions: A qualitative analysis of systems' structure and behavior2015Inngår i: Systems research and behavioral science, ISSN 1092-7026, E-ISSN 1099-1743Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We qualitatively analysed how and why environmental improvement actions often lead to unintended environmental consequences. Different theories are integrated to delineate the underlying system structure causing this system behavior. Causal loop diagram technique is utilized to explore and visualize: how incremental improvements in material and energy efficiency can unintendedly cause consumption to increase; how this consumption rebound effect is linked to generation of waste and pollution; and how this can give rise to social and negative externalities, economic inequalities and other broad unintended consequences in our society. Consumption and incremental innovation are found to be the highest leverage points and reinforcing factors driving unintended environmental consequences in this complex system. The paper in addition explores two potential modes of behaviour dissimilar to those of unintended environmental consequences. These emerging modes of behaviour are product-service systems and environmental policy instruments. Their combination forms a prominent transition pathway from a production-consumption-dispose economy to a so-called circular economy.

  • 8.
    Laurenti, Rafael
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi. IVL Swedish Environmental Research Institute, Sweden.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Singh, Jagdeep
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Some pervasive challenges to sustainability by design of electronic products: a conceptual discussion2015Inngår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 108, Part A, s. 281-288Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Sustainability should encompass responsibility for unintended environmental consequences of modern developments. This study examined some pervasive challenges to sustainability by design of electronic products, namely: (i) product and consumption redundancies; (i) embodied environmental and social impacts occurring distant in time and space from the point of consumption; and (iii) production and consumption dynamics. This analysis identified essential developments in certain areas that can assist design practice in preventing unintended environmental consequences. These were: (1) complementing life cycle assessment studies with analyses of unintended environmental consequences; and (2) exploiting the vital role of product design in fostering a circular economy. Indicators that provide information about (a) the increasing spatial and decreasing temporal separation of production, consumption and waste management, (b) constraints in raw materials supply and (c) marginal changes in money and time spent should be available to product designers and consumers. Furthermore, information technology, namely computer-aided design (CAD) tools, should be refined to assist product designers in designing for effective circularity and end-of-waste and limiting hibernation of resources in the use phase.

  • 9.
    Laurenti, Rafael
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Singh, Jagdeep
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Towards Addressing Unintended Environmental Consequences: A Planning Framework2015Inngår i: Sustainable Development, ISSN 0968-0802, E-ISSN 1099-1719, Vol. 24, nr 1, s. 1-17Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Efforts to decouple environmental impacts and resource consumption have been confounded by interactions and feedback between technical-economic, environmental and social aspects not considered prior to implementing improvement actions. This paper presents a planning framework that connects material flows and the socio-economic drivers that result in changes in these flows, in order to reduce conflicts between localized gains and global losses. The framework emphasizes the need for (i) having different settings of system boundaries (broader and narrower), (ii) explicitly accounting for causal relationships and feedback loops and (iii) identifying responsibilities between stakeholders (e.g. producers, consumers, collectors, recyclers, policy makers). Application of the framework is exemplified using the case of the global mobile phone product system. 'Product design and development' and 'Retailers and users as part of a collection system' were identified as central intervention points for implementing improvement strategies that included designing for longer life, designing for recycling and improving collection, designing for limiting phone hibernation time and internalizing external costs.

  • 10. Olsson, L. E.
    et al.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Frostell, B.
    Friman, M.
    What Can Be Done to Change?—The Environmental and Behavioral Consequences of Interventions for Sustainable Travel2022Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 14, nr 3, artikkel-id 1345Artikkel i tidsskrift (Fagfellevurdert)
  • 11.
    Papageorgiou, Asterios
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Henrysson, Maryna
    KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Energisystem.
    Nuur, Cali
    KTH, Skolan för industriell teknik och management (ITM), Industriell ekonomi och organisation (Inst.), Hållbarhet, Industriell dynamik & entreprenörskap.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Sundberg, Cecilia
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Vanhuyse, F.
    Mapping and assessing indicator-based frameworks for monitoring Circular Economy development at the city-level2021Inngår i: Sustainable cities and society, ISSN 2210-6707, Vol. 75, artikkel-id 103378Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The transition towards a circular economy (CE) is increasingly recognized as a promising pathway to tackle pressing sustainability challenges at the city-level. Indicator-based frameworks, that is, integrated systems of indicators, are considered as useful tools for monitoring this transition. Yet, studies that map and assess such frameworks are scanty. This article addresses this gap by assessing 15 indicator-based frameworks applicable to measure circularity at the city-level. The identified frameworks were assessed using eight criteria (transparency, stakeholder engagement, effective communication, ability to track temporal changes, applicability, alignment with CE principles, validity and relevance to sustainable development). Additionally, 12 validity requirements were defined to assess to what extent the indicators in the frameworks reflect CE aspects. The assessment reveals a wide variation regarding the extent to which the frameworks match the criteria with none of them satisfying all. In addition, in terms of validity criterion, none includes indicators that fulfill all the validity requirements. Furthermore, most frameworks consist mainly of environmental indicators and only three include indicators reflecting aspects related to the four pillars of sustainable development (environmental, social, economic and governance). Further research could develop a standardized framework for measuring circularity at the city-level and improving existing frameworks.

  • 12.
    Papageorgiou, Asterios
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Frostell, B.
    Sundberg, Cecilia
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Resurser, energi och infrastruktur.
    A new physical accounting model for material flows in urban systems with application to the Stockholm Royal Seaport District2019Inngår i: Journal of Industrial Ecology, ISSN 1088-1980, E-ISSN 1530-9290Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Sustainable urbanization requires streamlining of resource management in urban systems which in turn requires understanding of urban metabolism (UM). Even though various methods have been applied for UM analysis, to date there is no standardized method for comprehensive accounting of material flows in urban systems. Moreover, the accounting of material flows is rarely implemented with a bottom-up approach that can provide a thorough analysis of UM. This article presents the Urban Accounting Model (UAM) which aims to allow comprehensive accounting of urban material flows based on a bottom-up approach. The model comprises two interlinked sub-models. The first was developed by integrating a new physical input output table (PIOT) framework for urban systems into a three-dimensional structure. The second comprises a set of physical accounts for systematic accounting of material flows of each economic sector in the system in order to support the compilation of the PIOTs. The functions of the UAM were explored through its application to two urban neighborhoods in the Stockholm Royal Seaport district. The application highlighted that the UAM can describe the physical interactions between the urban system and the environment or other socioeconomic systems, and capture the intersectoral flows within the system. Moreover, its accounts provide information that allow an in-depth analysis of the metabolism of specific sectors. Overall, the UAM can function as a useful tool for UM analysis as it systematizes data collection and at the same time depicts the physical reality of the urban system.

  • 13.
    Shahbazi, Ali
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik. Univ Tehran, Fac Nat Resources, Dept Environm Sci, Karaj 7787131587, Iran..
    Moeinaddini, Mazaher
    Univ Tehran, Fac Nat Resources, Dept Environm Sci, Karaj 7787131587, Iran..
    Abdoli, Mohammad Ali
    Univ Tehran, Fac Environm, Dept Environm Engn, Tehran 1417853111, Iran..
    Hosseinzadeh, Mahnaz
    Univ Sheffield, Sheffield Univ Management Sch, Sheffield S10 2TN, England..
    Jaafarzadeh, Neamatollah
    Ahvaz Jundishapur Univ Med Sci, Environm Technol Res Ctr, Ahvaz 6135715794, Iran..
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Environmental Damage of Different Waste Treatment Scenarios by Considering Avoided Emissions Based on System Dynamics Modeling2023Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 15, nr 23, artikkel-id 16158Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This study aims to develop a comprehensive model for life cycle assessment and environmental damage cost calculations considering avoided emissions in different waste management scenarios using the system dynamics (SD) approach. Our analysis reveals that under the business-as-usual (BAU) scenario for the period 2020-2050, the total net greenhouse gas (GHG) emissions reach 12.5 Mt, with the highest environmental damage cost being USD 689 million. In contrast, an integrated management strategy encompassing recycling, composting, anaerobic digestion, and incineration results in a 195% reduction in net GHG emissions compared to the BAU Scenario. Concurrently, the environmental damage cost drops to USD 277 million, incorporating USD 347 million in savings, leading to a net environmental damage cost of USD -71 million. The findings affirm that accounting for emissions avoided across various treatment methods offers a more accurate estimate of environmental damage costs. Additionally, policies centered on integrated waste management are more likely to achieve sustainability. The study also demonstrates the utility of the SD approach in providing a holistic view of waste management systems and in evaluating the effectiveness of various policy strategies for sustainable waste management.

  • 14.
    Singh, Jagdeep
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Laurenti, Rafael
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Progress and challenges to the global waste management system2014Inngår i: Waste Management & Research, ISSN 0734-242X, E-ISSN 1096-3669, Vol. 32, nr 9, s. 800-812Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Rapid economic growth, urbanization and increasing population have caused (materially intensive) resource consumption to increase, and consequently the release of large amounts of waste to the environment. From a global perspective, current waste and resource management lacks a holistic approach covering the whole chain of product design, raw material extraction, production, consumption, recycling and waste management. In this article, progress and different sustainability challenges facing the global waste management system are presented and discussed. The study leads to the conclusion that the current, rather isolated efforts, in different systems for waste management, waste reduction and resource management are indeed not sufficient in a long term sustainability perspective. In the future, to manage resources and wastes sustainably, waste management requires a more systems-oriented approach that addresses the root causes for the problems. A specific issue to address is the development of improved feedback information (statistics) on how waste generation is linked to consumption.

  • 15.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Industrial Ecology Approaches to Improve Metal Management: Three Modeling Experiments2014Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    A linear model of consumption − produce-use-dispose − has constantly increased the pressure on the environment in recent decades. There has been a great belief that technology will solve the problem, but in many cases it is only partly contributing to the solution. For a full solution, the root causes of problems need to be identified. The drivers-pressures-state-impact-response (DPSIR) framework allows the drivers of a specific problem to be identified by structuring the causal relations between humans and the environment. A state/ impact-based approach can help identify pressures and drivers, and make what can be considered an end-of-pipe response. Rather than that mainstream approach, this thesis adopts a pressure-based driver-oriented approach, which could be considered a proactive approach to environmental resource management.

    In physical resource management, material flow analysis (MFA) is one of the tools used for communication and decision support for policy response on resource productivity and pollution abatement. Here, element flow analysis (EFA), a disaggre- gation of MFA for better mass balance, was applied in pollution control and resource management. The pressure-based driver-oriented approach was used to model element flows and thus identify the drivers of problems in order to improve pollution control and resource management in complex systems.

    In one case study, a source-storage-transport model was developed and applied in five lakes in the Stockholm region to identify the drivers of copper pollution by monitoring the state of the environment through element flow modeling linking diffuse sources and fate in the lakes. In a second case study, a system dynamics modeling approach was applied in dynamic element flow modeling of the global mobile phone product system to investigate the drivers for closing the material flow loop through a sensitivity analysis. In a third case study, causal loop diagram modeling was used for proactive resource management to identify root causes of a problem in a complex system (product systems of physical consumer goods) by qualitatively analyzing unintended environmental consequences of an improvement action.

    In the case study on lakes in the Stockholm region, the source-transport-storage model proved capable of predicting copper sources through monitoring the sediment copper content in the heavily copper-polluted lakes. The results also indicated how the model could help guide policy makers in controlling copper pollution. The system dynamics study proposed an eco-cycle model of the global mobile phone product system by tuning the drivers, which could lessen the pressures on resources by decreasing the resource demands for production and increasing resource recovery at product end-of- life. The causal loop diagram study showed that a broader systems approach is required to understand and identify the drivers for proactive resource management in a complex system, where improvement actions can lead to unintended consequences. 

    Fulltekst (pdf)
    Licentiate Thesis
  • 16.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Systems Modeling Approaches to Physical Resource Management: An Industrial Ecology Perspective2016Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Many of the present problems that we are facing arise as unanticipated side-effects of our own actions. Moreover, the solutions implemented to solve important problems often create new problems. To avoid unintended consequences, understanding complex systems is essential in devising policy instruments and in improving environmental management. Thus, this thesis investigated systems modeling approaches to under- stand complex systems and monitor the environmental performance of management actions. The overall aim of the work was to investigate the usefulness of different systems modeling approaches in supporting environmental management. A driver- based, pressure-oriented approach was adopted to investigate systems modeling tools. Material/substance flow analysis, environmental footprinting, input-output analysis, process-based dynamic modeling, and systems dynamics modeling approaches were applied in different cases to investigate strengths and weaknesses of the tools in generating an understanding of complex systems. Three modeling and accounting approaches were also tested at different systems scales to support environmental mon- itoring. Static modeling approaches were identified as fundamental to map, account, and monitor physical resource metabolism in production and consumption systems, whereas dynamic modeling showed strengths in understanding complex systems. The results suggested that dynamic modeling approaches should be conducted on top of static analysis to understand the complexity of systems when devising and testing policy instruments. To achieve proactive monitoring, a pressure-based assessment was proposed instead of the mainstream impact/state-based approach. It was also concluded that the LCA community should shift the focus of its assessments to pressures instead of impacts. 

    Fulltekst (pdf)
    fulltext
  • 17.
    Sinha, Rajib
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Laurenti, Rafael
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Singh, Jagdeep
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Malmström, Maria E.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Identifying ways of closing the metal flow loop in the global mobile phone product system: A system dynamics modeling approach2016Inngår i: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, s. 65-76Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In the past few decades, e-waste has emerged as one of the fastest growing and increasingly complex waste flows world-wide. Within e-waste, the life cycle of the mobile phone product system is particularly important because of: (1) the increasing quantities of mobile phones in this waste flow; and (2) the sustainability challenges associated with the emerging economies of reuse, refurbishment, and export of used mobile phones. This study examined the possibilities of closing the material flow loop in the global mobile phone product system (GMPPS) while addressing the broad sustainability challenges linked to recovery of materials. This was done using an adapted system dynamics modeling approach to investigate the dominant paths and drivers for closing the metal flow loop through the concept of eco-cycle. Two indicators were chosen to define the closed loop system: loop leakage and loop efficiency. Sensitivity analysis of selected parameters was used to identify potential drivers for closing the metal flow loop. The modeling work indicated leverage for management strategies aimed at closing the loop in: (i) collection systems for used phones, (ii) mobile phone use time, and (ii) informal recycling in developing countries. By analyzing the dominant parameters, an eco-cycle scenario that could promote a closed loop system by decreasing pressures on virgin materials was formulated. Improved policy support and product service systems could synchronize growth between upstream producers and end-of-life organizations and help achieve circular production and consumption in the GMPPS. 

    Fulltekst (pdf)
    fulltext
  • 18.
    Sinha, Rajib
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Laurenti, Rafael
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Singh, Jagdeep
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Malmström, Maria
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Experimenting on closing the metal flow loop in the global mobile phone product system: a system dynamics modeling approachManuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    Waste electrical and electronic equipment (WEEE), well known as e-waste, is one of the fastest growing waste flows worldwide with increasing complexity in production through distribution to end of life (EoL). In this waste stream, a high number of mobile phones makes e-waste more compelling to examine the whole life of the specific product. In addition, having an interest in e-wastes for informal recycling in developing countries (DC), industrialized countries (IC) export e-wastes to developing countries. The emerging economies of reuse, refurbish and export of used mobile phones not only make the EoL complex, but also make the systems more challenging to sustainability. Since industrial ecology (IE) advocates resource efficiency with closed loop systems, we adapted a system dynamics modeling approach to investigate the dominance paths and driving forces for closing the metal flow loop through the concept of industrial symbiosis and eco-cycle modeling. This study finds higher efficiency for closing the loop in collection systems of used phones, mobile phone use time, and informal recycling in developing countries. By analyzing the dominant parameters, an eco-cycle model is proposed which could enhance a closed loop system by decreasing pressures on non-renewable resources. Improved policy supports accompanying consumer and corporate awareness with responsibility could create a circular consumption in the global mobile phone product system. 

  • 19.
    Sinha, Rajib
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Lennartsson, Maria
    Frostell, Bjorn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Environmental footprint assessment of building structures: A comparative study2016Inngår i: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 104, s. 162-171Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Following the failure to implement a rather sophisticated Excel-based environmental assessment tool, environmental load profile (ELP) in the Swedish construction industry, the City of Stockholm further developed a simplified version focusing on materials to make the tool user friendly and simple, aiming at educating stakeholders in the design phase of building construction. This study evaluated whether this simplified ELP of building structures (ELP-s) can be used directly or modified for use as a simple standard model for calculating the environmental footprint of building structures. ELP-s was compared with the two leading commercial LCA softwares, GaBi and SimaPro, based on two reference buildings: (i) a concrete and (ii) a wooden building, in order to examine the importance of material selection and the simplification of the tool. The results showed that the estimated energy footprint obtained using ELP-s was close in value to that produced by GaBi and SimaPro, but that carbon footprint was much lower with ELP-s. This great deviation in carbon footprint can be explained by the lower GHG emissions intensity per unit energy in Sweden compared with the world average or European average, the major data sources on which estimations in GaBi and SimaPro are based. These results indicate the importance of exercising care when applying commercial software tools to a specific situation in a specific country. They also indicate that the model should fit the purpose.

  • 20.
    Sinha, Rajib
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Olsson, Lars E.
    Karlstad Univ, CTF Serv Res Ctr, SE-65188 Karlstad, Sweden.;Karlstad Univ, Dept Social & Psychol Studies, SE-65188 Karlstad, Sweden..
    Frostell, Bjorn
    Ecoloop AB, S-11646 Stockholm, Sweden..
    Sustainable Personal Transport Modes in a Life Cycle Perspective-Public or Private?2019Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 11, nr 24, artikkel-id 7092Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Life cycle-based studies endorse public transport to cause lower environmental pressures compared to a private car. However, a private car can cause lower environmental pressure when a public vehicle (bus or train) runs on a lower occupancy during an off-peak hour. This fact should be the basis for a more profound debate regarding public versus private transport. Many transport interventions are striving to reduce the number of car transports. To reach this goal, passengers need attractive alternatives to their reduced number of car travels (i.e., attractive public transport). This study aimed to develop a model allowing us to estimate potential environmental gains by changing travel behavior. A passenger travel model was developed based on life cycle inventories (LCI) of different travel modes to calculate environmental footprints. The model was applied in an intervention of public transport through temporary free public transport. The intervention was successful in significantly reducing the number of car transports (12%). However, total passenger kilometer travelled (PKT) increased substantially more, mainly by bus, but also train, bicycle and walking. The total energy, carbon and nitrogen oxide footprints were slightly increased after the intervention. If the commuters were assumed to travel during peak hours or the number of public transports were not affected by the increased number of commuters, the overall environmental footprints decreased. Our conclusions are that transport interventions are very complex. They may result in desired changes, but also in altered travel behavior, increasing overall impact. Thus, a very broad evaluation of all transport modes as well as potential positive social influences of the transport intervention will be necessary.

  • 21.
    Sinha, Rajib
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Thomas, Jean-Baptiste
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Strand, A.
    IVL Svenska Miljoinst, IVL Swedish Environm Res Inst, Kristineberg 566, S-45178 Fiskebackskil, Sweden..
    Soderqvist, T.
    Anthesis Enveco AB, Barnhusgatan 4, SE-11123 Stockholm, Sweden.;Holmboe & Skarp AB, Norr Kallstavagen 9, SE-14896 Sorunda, Sweden..
    Stadmark, J.
    IVL Svenska Miljoinst, IVL Swedish Environm Res Inst, POB 53021, S-40014 Gothenburg, Sweden..
    Franzen, F.
    Tyrens AB, Peter Myndes Backe 16, SE-11846 Stockholm, Sweden..
    Ingmansson, I.
    Tyrens AB, Peter Myndes Backe 16, SE-11846 Stockholm, Sweden..
    Gröndahl, Fredrik
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Hasselström, Linus
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Quantifying nutrient recovery by element flow analysis: Harvest and use of seven marine biomasses to close N and P loops2022Inngår i: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 178, artikkel-id 106031Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Anthropogenic consumption of nitrogen (N) and phosphorus (P) has pushed their respective planetary boundaries beyond a safe operating space causing environmental problems, and simultaneously, the depletion of finite mineral P resources is of growing concern. Previous research has found that marine biomass such as kelp, reed and mussels have a high potential for taking up N and P, which could potentially contribute both to alleviating environmental problems and recirculating P from marine environments back to human consumption systems. This paper thus examines these nutrient flows and the extent to which marine biomass can contribute to close the loop. The study utilizes an element flow analysis (EFA) to establish the mapping of N and P flows and explore plausible scenarios of biomass utilisation by 2030 and 2050 for P loop closure in Sweden. The current uptake of P and N through the seven marine biomass cases (mariculture of mussels on both the Swedish east and west coasts, kelp and ascidians and the harvest of wild oysters, beach-cast and reed) contributes to 1.1% and 0.3% respectively of the full loop closure (relative to 2016 loading). Approximately 22% of the total P (and 23% N) uptake (in the biomasses) is currently being used in products, while the rest remains unused. The plausible future scenario for 2050 expects to contribute to around 10% P and 2.8% N loop closure (relative to 2016) if all nutrients in the uptake are used.

  • 22.
    Söderqvist, Tore
    et al.
    Holmboe & Skarp AB, Norr Källstavägen 9, 148 96, Sorunda, Sweden.
    Nathaniel, Hanna
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Franzén, Daniel
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Franzén, Frida
    Tyréns AB, Peter Myndes Backe 16, 118 46, Stockholm, Sweden.
    Hasselström, Linus
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Gröndahl, Fredrik
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Stadmark, Johanna
    IVL Swedish Environmental Research Institute, Box 53021, 400 14, Göteborg, Sweden.
    Strand, Åsa
    IVL Swedish Environmental Research Institute, Kristineberg 566, 451 78, Fiskebäckskil, Sweden.
    Ingmansson, Ida
    Tyréns AB, Peter Myndes Backe 16, 118 46, Stockholm, Sweden.
    Lingegård, Sofia
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Thomas, Jean-Baptiste
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik.
    Cost–benefit analysis of beach-cast harvest: Closing land-marine nutrient loops in the Baltic Sea region2022Inngår i: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 51, nr 5, s. 1302-1313Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Harvesting beach-cast can help mitigate marine eutrophication by closing land-marine nutrient loops and provide a blue biomass raw material for the bioeconomy. Cost–benefit analysis was applied to harvest activities during 2009–2018 on the island of Gotland in the Baltic Sea, highlighting benefits such as nutrient removal from the marine system and improved recreational opportunities as well as costs of using inputs necessary for harvest. The results indicate that the activities entailed a net gain to society, lending substance to continued funding for harvests on Gotland and assessments of upscaling of harvest activities to other areas in Sweden and elsewhere. The lessons learnt from the considerable harvest experience on Gotland should be utilized for developing concrete guidelines for carrying out sustainable harvest practice, paying due attention to local conditions but also to what can be generalized to a wider national and international context.

  • 23.
    Thomas, Jean-Baptiste
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Vatten- och miljöteknik. KTH Royal Institute of Technology Department of Sustainable Development, Environmental Science and Engineering Stockholm Sweden.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Strand, Åsa
    IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute Kristineberg Sweden.
    Söderqvist, Tore
    Anthesis Enveco AB Stockholm Sweden;Holmboe & Skarp AB Sorunda Sweden.
    Stadmark, Johanna
    IVL Svenska Miljöinstitutet/IVL Swedish Environmental Research Institute Gothenburg Sweden.
    Franzén, Frida
    Tyrens AB Stockholm Sweden.
    Ingmansson, Ida
    Tyrens AB Stockholm Sweden.
    Gröndahl, Fredrik
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Hasselström, Linus
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik.
    Marine biomass for a circular blue‐green bioeconomy? A life cycle perspective on closing nitrogen and phosphorus land‐marine loops2021Inngår i: Journal of Industrial Ecology, ISSN 1088-1980, E-ISSN 1530-9290, artikkel-id jiec.13177Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A blue-green bioeconomy revolution is underway in Europe, with particular attention being paid to the development of new or underutilized marine biomass resources. The wild harvest and mariculture of low-trophic non-fed species of marine biomass may be contributing to circular economies, the mitigation of environmental problems such as eutrophication and climate change through the uptake of nutrients and carbon, while also recovering finite phosphorus from marine coastal environments, thus contributing to food security. The present study provides a cradle-to-gate life cycle perspective on seven established or innovative/emerging marine biomass utilization cases in Sweden: mariculture of sugar kelp, blue mussels, and ascidians and the harvest of invasive Pacific oysters along the Skagerrak coast, the mariculture of blue mussels in the Baltic sea, the harvest of common reed in the Stockholm archipelago, and the harvest of beach-cast seaweed in Gotland. Results showed that the mariculture cases were found to contribute to eutrophication and climate impact mitigation (at gate). All cases were found to contribute to closing the loop on phosphorus by enabling recovery from marine or coastal environments, bridging marine–land flows, all while performing well from an environmental perspective with a relatively low cumulative energy demand and low carbon and nutrient footprints. This highlights the potential of low-trophic biomass to contribute to phosphorus security in the future, and demonstrates the value of industrial ecology tools such as LCA in support of this imminent Decade of Ocean Science for Sustainable Development. 

    Fulltekst (pdf)
    fulltext
  • 24.
    Wang, Shaozhe
    et al.
    Wuhan Engn Consulting Bur, Wuhan 430014, Peoples R China..
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik. KTH Royal Inst Technol Stockholm, Sch Architecture & Built Environm, Dept Sustainable Dev Environm Sci & Engn SEED, Teknikringen 10B, S-10044 Stockholm, Sweden..
    Life Cycle Assessment of Different Prefabricated Rates for Building Construction2021Inngår i: Buildings, E-ISSN 2075-5309, Vol. 11, nr 11, artikkel-id 552Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In recent years, Sweden has promoted prefabricated buildings supporting the increasing of prefabricated rates in buildings with precast components, in order to reduce the environmental problems caused by the construction sector. This study, focusing on the construction activities, examines how the increasing prefabricated rate could influence the environmental impacts of the construction sector. This study conducts a cradle-to-gate life cycle assessment (LCA) of a reference building with a prefabricated rate of 26% in the Stockholm Royal Seaport, and compares nine scenarios with prefabricated rates, ranging from 6% to 96%. The results indicate the water footprint decreases, but the total energy footprint and carbon footprint increase as the prefabricated rate increases. Among other impacts, terrestrial ecotoxicity shows the biggest increase with an increase of the prefabricated rate. This study reveals that material extraction is the largest influencing factor, causing a water footprint when the prefabricated rate increases. The impact changes in the energy footprint, carbon footprint, and terrestrial ecotoxicity, and are primarily determined by transport and are sensitive to transport distance and vehicle types.

  • 25.
    Zhou, Guanghong
    et al.
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Singh, Jagdeep
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Wu, Jiechen
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Sinha, Rajib
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Laurenti, Rafael
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Frostell, Björn
    KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Hållbar utveckling, miljövetenskap och teknik, Industriell ekologi.
    Evaluating low-carbon city initiatives from the DPSIR framework perspective2015Inngår i: Habitat International, ISSN 0197-3975, E-ISSN 1873-5428, Vol. 50, s. 289-299Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Current low-carbon city initiatives were evaluated using the DPSIR (Drivingforces-Pressures-State-Impacts-Responses) causal-effect framework for investigating interactions between environmental issues and human activities. For effective management towards achieving a low-carbon city, integrating the pressure-based, driver-oriented DPSIR approach could help decision makers examine whether greenhouse gas (GHG) reduction approaches deal with the root causes of GHG emissions and work to-wards low-carbon city development goals. The DPSIR framework was used on 36 global cities to analyse the socio-economic dynamics of GHG emissions and their pressures on the environment, the state of the environment, related climate change impacts and responses from society. The results indicated that numerous cities have awareness of low-car bon plans and that most of these plans are pressure-based and driver-oriented. Most city plans recognise energy, transportation and building as the main driving forces for GHG emissions, which cause environmental pressures, and highlight technical responses to reduce GHG emissions pressures from these root causes. Inaddition, most plans recognise institutional and cognitional responses to low-carbon city development, such as: policies and legislation; departmental planning and cooperation; measuring, monitoring and reporting performance; capital invest-ment; community education and outreach; and stakeholder involvement.

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