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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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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

Subjects: 1600 Industrial engineering > 1604 Manufacturing
1800 Chemical engineering > 1800 Chemical engineering
Department: Department of Chemical Engineering
Research Center: CIRAIG - International Reference Centre for the Life Cycle of Products, Processes and Services
Funders: Norwegian University of Science and Technology (NTNU), International Life Cycle Chair of the CIRAIG at Polytechnique Montreal
PolyPublie URL: https://publications.polymtl.ca/2866/
Journal Title: Journal of Industrial Ecology (vol. 22, no. 4)
Publisher: Wiley & Yale University
DOI: 10.1111/jiec.12604
Official URL: https://doi.org/10.1111/jiec.12604
Date Deposited: 29 Aug 2018 11:06
Last Modified: 14 May 2023 15:21
Cite in APA 7: 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), 656-670. https://doi.org/10.1111/jiec.12604


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