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Choice of allocations and constructs for attributional or consequential life cycle assessment and input-output analysis

Guillaume Majeau-Bettez, Thomas Dandres, Stefan Pauliuk, Richard Wood, Edgar Hertwich, Réjean Samson and Anders Hammer Strømman

Article (2018)

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Cite this document: Majeau-Bettez, G., Dandres, T., Pauliuk, S., Wood, R., Hertwich, E., Samson, R. & Strømman, A. H. (2018). Choice of allocations and constructs for attributional or consequential life cycle assessment and input-output analysis. Journal of Industrial Ecology, 22(4), p. 656-670. doi:10.1111/jiec.12604
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The divide between attributional and consequential research perspectives partly overlaps with the long-standing methodological discussions in the life cycle assessment (LCA) and input-output analysis (IO) research communities on the choice of techniques and models for dealing with situations of coproduction. The recent harmonization of LCA allocations and IO constructs revealed a more diverse set of coproduction models than had previously been understood. This increased flexibility and transparency in inventory modeling warrants a re-evaluation of the treatment of coproduction in analyses with attributional and consequential perspectives. In the present article, the main types of coproductions situations and of coproduction models are reviewed, along with key desirable characteristics of attributional and consequential studies. A concordance analysis leads to clear recommendations, which call for important refinements to current guidelines for both LCA/IO practitioners and database developers. We notably challenge the simple association between, on the one hand, attributional LCA and partition allocation, and on the one hand, consequential LCA and substitution modeling.

Uncontrolled Keywords

coproduction; by-product; joint production; system expansion; substitution; multifunctionality

Open Access document in PolyPublie
Subjects: 1600 Génie industriel > 1604 Fabrication
1800 Génie chimique > 1800 Génie chimique
Department: Département de génie chimique
Research Center: CIRAIG - Centre international de référence sur le cycle de vie des produits, procédés et services
Funders: Norwegian University of Science and Technology (NTNU), International Life Cycle Chair of the CIRAIG at Polytechnique Montreal
Date Deposited: 29 Aug 2018 11:06
Last Modified: 08 Apr 2021 10:42
PolyPublie URL: https://publications.polymtl.ca/2866/
Document issued by the official publisher
Journal Title: Journal of Industrial Ecology (vol. 22, no. 4)
Publisher: Wiley & Yale University
Official URL: https://doi.org/10.1111/jiec.12604


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