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Det bästa av två världar?: En utredning av praktisk tillämpning och användbarhet av hybrid-LCA för att inventera klimatpåverkan från konsumtion i kommuner och landsting
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms).
2016 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
The best of two worlds? : A survey of practical application and usability of hybrid LCA for inventory of climate impact from consumption in municipalities and county councils (English)
Abstract [en]

More and more local governments (municipalities and county councils) include the indirect climate impacts of consumption in their environmental work. Life Cycle Assessment (LCA) is an established tool for inventorying both direct and indirect impacts of a product or service, but when the climate impact of an entire organization's consumption of products and services is of interest, the inventory of data can easily become excessive. Through the years, various methods for enabling life cycle inventory on the organizational level have been developed. Hybrid-LCA is one of them where the term "hybrid" comes from that the method combines a so-called bottom up with a top down approach of the data inventory. The practical application of hybrid-LCA and the usefulness of the assessment results for local governments are not self-evident. This study aims to investigate the practical application of hybrid-LCA as a tool for inventorying climate impact for municipalities’ and county councils’ consumption. The purpose includes identifying the challenges associated with the practical procedure when conducting a hybrid-LCA and evaluating the inventory results’ usefulness in municipalities and county councils’ climate work. The results of the study are based on semi-structured interviews, a case study in which hybrid LCA is applied and a workshop where the case study is evaluated. The results show that the hybrid-LCA enables both a holistic approach to the climate impact and a level of detail for selected areas, making it possible to prioritize areas and identify measures to reduce the climate impact from consumption. The main challenges that arise in the practical procedure of the hybrid-LCA are associated with inventory and verification of foreground data and matching purchases of product groups to standardized classifications. To simplify the execution, increase transparency and facilitate monitoring, local governments are recommended to investigate the possibility of coordinating purchasing system and labeling product groups, in accordance with standardized classifications. It is also recommended to request information about a products weight and material content from suppliers. The uncertainties associated with the outcome of a hybrid-LCA are and remain large, therefore it is important that the results are communicated in terms of potential environmental impacts.

Place, publisher, year, edition, pages
Keyword [en]
hybrid-LCA, environmentally extended input-output analysis, climate impact, consumption
Keyword [sv]
hybrid-LCA, miljöexpanderad input-output-analys, klimatpåverkan, konsumtion
National Category
Environmental Management
URN: urn:nbn:se:kth:diva-189165OAI: diva2:943754
External cooperation
Tyrens AB
Subject / course
Environmental Strategies
Educational program
Master of Science in Engineering - Energy and Environment
Available from: 2016-10-03 Created: 2016-06-28 Last updated: 2016-10-03Bibliographically approved

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