Carbon footprint assessment of a wood multi-residential building considering biogenic carbon

Claudiane M. Ouellet-Plamondon*, Livia Ramseier, Maria Balouktsi, Laetitia Delem, Greg Foliente, Nicolas Francart, Antonio Garcia-Martinez, Endrit Hoxha, Thomas Lützkendorf, Freja Nygaard Rasmussen, Bruno Peuportier, Jarred Butler, Harpa Birgisdottir, David Dowdell, Manish Kumar Dixit, Vanessa Gomes, Maristela Gomes da Silva, Juan Carlos Gómez de Cózar, Marianne Kjendseth Wiik, Carmen LlatasRicardo Mateus, Lizzie M. Pulgrossi, Martin Röck, Marcella Ruschi Mendes Saade, Alexander Passer, Daniel Satola, Seongwon Seo, Bernardette Soust Verdaguer, Jakub Veselka, Martin Volf, Xiaojin Zhang, Rolf Frischknecht

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

Wood and other bio-based building materials are often perceived as a good choice from a climate mitigation perspective. This article compares the life cycle assessment of the same multi-residential building from the perspective of 16 countries participating in the international project Annex 72 of the International Energy Agency to determine the effects of different datasets and methods of accounting for biogenic carbon in wood construction. Three assessment methods are herein considered: two recognized in the standards (the so-called 0/0 method and −1/+1 method) and a variation of the latter (−1/+1* method) used in Australia, Canada, France, and New Zealand. The 0/0 method considers neither fixation in the production stage nor releases of biogenic carbon at the end of a wood product's life. In contrast, the −1/+1 method accounts for the fixation of biogenic carbon in the production stage and its release in the end-of-life stage, irrespective of the disposal scenario (recycling, incineration or landfill). The −1/+1 method assumes that landfills offer only a temporary sequestration of carbon. In the −1/+1* variation, landfills and recycling are considered a partly permanent sequestration of biogenic carbon and thus fewer emissions are accounted for in the end-of-life stage. We examine the variability of the calculated life cycle-based greenhouse gas emissions calculated for a case study building by each participating country, within the same assessment method and across the methods. The results vary substantially. The main reasons for deviations are whether or not landfills and recycling are considered a partly permanent sequestration of biogenic carbon and a mismatch in the biogenic carbon balance. Our findings support the need for further research and to develop practical guidelines to harmonize life cycle assessment methods of buildings with bio-based materials.

Originalspracheenglisch
Aufsatznummer136834
FachzeitschriftJournal of Cleaner Production
Jahrgang404
DOIs
PublikationsstatusVeröffentlicht - 10 Juni 2023

ASJC Scopus subject areas

  • Erneuerbare Energien, Nachhaltigkeit und Umwelt
  • Bauwesen
  • Allgemeine Umweltwissenschaft
  • Strategie und Management
  • Wirtschaftsingenieurwesen und Fertigungstechnik

Fields of Expertise

  • Sustainable Systems

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