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Alessandro Arlati
HafenCity University, Faculty of Urban Planning and Regional Development, Henning-Voscherau-Platz 1, D-20457 Hamburg, Germany

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Journal article
Published: 22 July 2021 in Waste Management
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This study focuses on a comprehensive sustainability assessment of the management of the organic fraction of municipal solid waste in Ghent (Belgium), Hamburg (Germany) and Pécs (Hungary). A sustainability assessment framework has been applied to analyse social, environmental, and economic consequences at the midpoint level (25 impact categories) and at the endpoint level (5 areas-of-protection). For each case study, the reference scenario was analysed, along with three solutions to improve the sustainability performance, which were selected and developed with the collaboration of local stakeholders. The solutions focus on food waste prevention, collection (increasing separate collection and household composting) and/or valorisation treatment (insect breeding, bioplastic production and improvement of centralised treatment). The results show that food waste prevention results in substantial improvements in all areas of protection when a significant quantity of food is saved. Solutions proposing innovative treatments such as insect breeding do not show clear improvements at the endpoint level, given current technology development level, but appear promising for some categories such as Revenues, Ecotoxicity, Land Use or Particulate Matter if the substituted products compensate the impact of the treatment (e.g., energy and water use). Enhancing the separate collection of organic waste can improve sustainability, but trade-offs may arise, e.g., decreased environmental savings from energy recovery at incineration. For this, the influence of the electricity mix (more or less decarbonised) should be carefully considered in future studies. The application of the solutions proposed to other cities should also consider potential bottlenecks such as legislation barriers, public acceptance, or management costs.

ACS Style

David Sanjuan-Delmás; Sue Ellen Taelman; Alessandro Arlati; Andreas Obersteg; Csaba Vér; Ágnes Óvári; Davide Tonini; Jo Dewulf. Sustainability assessment of organic waste management in three EU Cities: Analysing stakeholder-based solutions. Waste Management 2021, 132, 44 -55.

AMA Style

David Sanjuan-Delmás, Sue Ellen Taelman, Alessandro Arlati, Andreas Obersteg, Csaba Vér, Ágnes Óvári, Davide Tonini, Jo Dewulf. Sustainability assessment of organic waste management in three EU Cities: Analysing stakeholder-based solutions. Waste Management. 2021; 132 ():44-55.

Chicago/Turabian Style

David Sanjuan-Delmás; Sue Ellen Taelman; Alessandro Arlati; Andreas Obersteg; Csaba Vér; Ágnes Óvári; Davide Tonini; Jo Dewulf. 2021. "Sustainability assessment of organic waste management in three EU Cities: Analysing stakeholder-based solutions." Waste Management 132, no. : 44-55.

Journal article
Published: 27 February 2021 in Sustainability
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Cities are essential players in responding to the present complex environmental and social challenges, such as climate change. The nature-based solution (NbS) concept is identified in the scientific discourse and further recognized by the European Commission as a part of the solution to address such challenges. Deploying NbS in urban contexts requires the cooperation of different public and private stakeholders to manage those processes. In this paper, the experiences of establishing and managing NbS-related processes following a co-creation approach in the city of Hamburg within the framework of an EU-funded research project (CLEVER Cities) are described and analyzed. The paper identifies and discusses the main emerging factors and challenges from (1) a procedural and methodological perspective and (2) concerning the different roles of the diverse stakeholders involved. This discussion is grounded in the context of existing regulations and novel concepts for citizens’ participation in urban decision-making processes. As research results, the article defines the leading players involved in the process and their roles and interrelationships, along with recommendations for future policy agendas in cities when dealing with NbS planning.

ACS Style

Alessandro Arlati; Anne Rödl; Sopho Kanjaria-Christian; Jörg Knieling. Stakeholder Participation in the Planning and Design of Nature-Based Solutions. Insights from CLEVER Cities Project in Hamburg. Sustainability 2021, 13, 2572 .

AMA Style

Alessandro Arlati, Anne Rödl, Sopho Kanjaria-Christian, Jörg Knieling. Stakeholder Participation in the Planning and Design of Nature-Based Solutions. Insights from CLEVER Cities Project in Hamburg. Sustainability. 2021; 13 (5):2572.

Chicago/Turabian Style

Alessandro Arlati; Anne Rödl; Sopho Kanjaria-Christian; Jörg Knieling. 2021. "Stakeholder Participation in the Planning and Design of Nature-Based Solutions. Insights from CLEVER Cities Project in Hamburg." Sustainability 13, no. 5: 2572.

Journal article
Published: 30 December 2020 in European Spatial Research and Policy
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The article argues that to reach circular economy goals urban regions need to identify and understand the challenges and opportunities originating from the differences in spatial settings, and to develop place-based solutions by adequately involving (local) stakeholders. Based on the case study that was conducted in Hamburg within the Horizon2020 project REPAiR, spatial specificities in five different urban areas shall be analysed and strategies that were developed in a co-creative process shall be explored. The results show that the spatial organisation of CE strategies depends on urban structures and stakeholders’ interest and needs to be embedded in the (local) governance setting and a spatial planning system.

ACS Style

Andreas Obersteg; Alessandro Arlati; Jörg Knieling. Making cities circular: Experiences from the living lab Hamburg-Altona. European Spatial Research and Policy 2020, 27, 59 -77.

AMA Style

Andreas Obersteg, Alessandro Arlati, Jörg Knieling. Making cities circular: Experiences from the living lab Hamburg-Altona. European Spatial Research and Policy. 2020; 27 (2):59-77.

Chicago/Turabian Style

Andreas Obersteg; Alessandro Arlati; Jörg Knieling. 2020. "Making cities circular: Experiences from the living lab Hamburg-Altona." European Spatial Research and Policy 27, no. 2: 59-77.

Journal article
Published: 27 September 2019 in Urban Planning
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Urban areas account for around 50% of global solid waste generation. In the last decade, the European Union has supported numerous initiatives aiming at reducing waste generation by promoting shifts towards Circular Economy (CE) approaches. Governing this process has become imperative. This article focuses on the results of a governance analysis of six urban regions in Europe involved in the Horizon 2020 project REPAiR. By means of semi-structured interviews, document analysis and workshops with local stakeholders, for each urban area a list of governance challenges which hinder the necessary shift to circularity was drafted. In order to compare the six cases, the various challenges have been categorized using the PESTEL-O method. Results highlight a significant variation in policy contexts and the need for these to evolve by adapting stakeholders’ and policy-makers’ engagement and diffusing knowledge on CE. Common challenges among the six regions include a lack of an integrated guiding framework (both political and legal), limited awareness among citizens, and technological barriers. All these elements call for a multi-faceted governance approach able to embrace the complexity of the process and comprehensively address the various challenges to completing the shift towards circularity in cities.

ACS Style

Andreas Obersteg; Alessandro Arlati; Arianne Acke; Gilda Berruti; Konrad Czapiewski; Marcin Dąbrowski; Erwin Heurkens; Cecília Mezei; Maria Federica Palestino; Viktor Varjú; Marcin Wójcik; Jörg Knieling. Urban Regions Shifting to Circular Economy: Understanding Challenges for New Ways of Governance. Urban Planning 2019, 4, 19 -31.

AMA Style

Andreas Obersteg, Alessandro Arlati, Arianne Acke, Gilda Berruti, Konrad Czapiewski, Marcin Dąbrowski, Erwin Heurkens, Cecília Mezei, Maria Federica Palestino, Viktor Varjú, Marcin Wójcik, Jörg Knieling. Urban Regions Shifting to Circular Economy: Understanding Challenges for New Ways of Governance. Urban Planning. 2019; 4 (3):19-31.

Chicago/Turabian Style

Andreas Obersteg; Alessandro Arlati; Arianne Acke; Gilda Berruti; Konrad Czapiewski; Marcin Dąbrowski; Erwin Heurkens; Cecília Mezei; Maria Federica Palestino; Viktor Varjú; Marcin Wójcik; Jörg Knieling. 2019. "Urban Regions Shifting to Circular Economy: Understanding Challenges for New Ways of Governance." Urban Planning 4, no. 3: 19-31.