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A critical comparison of ten disposable cup LCAs
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Environmental Strategies (moved 20130630).
2013 (English)In: Environmental impact assessment review, ISSN 0195-9255, E-ISSN 1873-6432, Vol. 43, 86-96 p.Article in journal (Refereed) Published
Abstract [en]

Disposable cups can be made from conventional petro-plastics, bioplastics, or paperboard (coated with petro-plastics or bioplastics). This study compared ten life cycle assessment (LCA) studies of disposable cups with the aim to evaluate the robustness of their results. The selected studies have only one impact category in common, namely climate change with global warming potential (GWP) as its category indicator. Quantitative GWP results of the studies were closer examined. GWPs within and across each study show none of the cup materials to be consistently better than the others. Comparison of the absolute GWPs (after correction for the cup volume) also shows no consistent better or worse cup material. An evaluation of the methodological choices and the data sets used in the studies revealed their influence on the GWP. The differences in GWP can be attributed to a multitude of factors, i.e., cup material and weight, production processes, waste processes, allocation options, and data used. These factors basically represent different types of uncertainty. Sensitivity and scenario analyses provided only the influence of one factor at once. A systematic and simultaneous use of sensitivity and scenario analyses could, in a next research, result in more robust outcomes.

Place, publisher, year, edition, pages
2013. Vol. 43, 86-96 p.
Keyword [en]
Disposable cups, LCA, Robustness, Uncertainty
National Category
Other Environmental Engineering
URN: urn:nbn:se:kth:diva-126032DOI: 10.1016/j.eiar.2013.06.006ISI: 000324970500010ScopusID: 2-s2.0-84880417775OAI: diva2:641749

QC 20130819

Available from: 2013-08-19 Created: 2013-08-19 Last updated: 2013-11-06Bibliographically approved

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Potting, Josepha
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Environmental Strategies (moved 20130630)
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