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Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects

Schulte, Maximilian and Hammar, Torun and Stendahl, Johan and Seleborg, Mikaela and Hansson, Per-Anders (2021). Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects. GCB Bioenergy. 13 , 1831-1850
[Research article]

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Abstract

The forest sector can play a pivotal role in mitigating climate warming by decreasing emissions to the atmosphere and increasing carbon removals. In an expanding bioeconomy, the pulp and paper industry provides opportunities for various low-carbon wood products with promising substitution effects. However, assessing climate effects of wood product systems is complex and requires a holistic approach. The objective of this study was to advance time dynamic climate impact assessment of a bioeconomically promising wood product from a system perspective. For this purpose, a time dynamic life cycle assessment was conducted on a pulp-based beverage carton. The assessment included fossil value chain emissions from cradle to grave, effects from biogenic carbon in a eucalyptus plantation, and credits from substitution. A polyethylene terephthalate (PET) bottle was considered for material substitution (MS) and differing marginal electricity and heat mixes for energy substitution. The results revealed dominating climate warming from value chain emissions and slight offsetting by biogenic carbon from standing biomass and soil organic carbon, and short-term carbon storage in the beverage carton. MS and displacing marginal energy mixes transformed the climate warming into a substantial total cooling effect. However, substitution effects varied strongly in terms of substitution factors and temperature change with varying replacement rate of the beverage carton and different marginal energy mixes. A climate cooling range of -0.8 center dot 10(-15) to -1.8 center dot 10(-15) K per unit of beverage carton by 2050 was found, highlighting potential relevance for climate policy making. Thus, production and use of wood-based beverage cartons over PET bottles can have climate cooling effects. Further assessments on alternative forestry systems (e.g., Nordic forests) are needed to identify the role of biogenic carbon in holistic climate assessments, with dynamic substitution effects included to increase the validity.

Authors/Creators:Schulte, Maximilian and Hammar, Torun and Stendahl, Johan and Seleborg, Mikaela and Hansson, Per-Anders
Title:Time dynamic climate impacts of a eucalyptus pulp product: Life cycle assessment including biogenic carbon and substitution effects
Series Name/Journal:GCB Bioenergy
Year of publishing :2021
Volume:13
Page range:1831-1850
Number of Pages:20
Publisher:WILEY
ISSN:1757-1693
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Climate Research
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:beverage carton, biogenic carbon, climate impact, LCA, pulp, substitution effect, temperature change, time dynamic, wood product
URN:NBN:urn:nbn:se:slu:epsilon-p-113760
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113760
Additional ID:
Type of IDID
DOI10.1111/gcbb.12894
Web of Science (WoS)000697047600001
ID Code:25862
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Energy and Technology
(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:18 Oct 2021 08:25
Metadata Last Modified:18 Oct 2021 08:31

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