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dc.contributor.author
Corona, Blanca
dc.contributor.author
Hoefnagels, Ric
dc.contributor.author
Vural Gürsel, Iris
dc.contributor.author
Moretti, Christian
dc.contributor.author
van Veen, M.
dc.contributor.author
Junginger, Martin
dc.date.accessioned
2022-10-31T08:24:46Z
dc.date.available
2022-10-31T07:40:12Z
dc.date.available
2022-10-31T08:24:46Z
dc.date.issued
2022-12-15
dc.identifier.issn
0959-6526
dc.identifier.other
10.1016/j.jclepro.2022.134829
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/578523
dc.identifier.doi
10.3929/ethz-b-000578523
dc.description.abstract
Achieving a circular economy (CE) is seen by society and policymakers as crucial to achieving a sustainable, resource-efficient, renewable and competitive economy. Given the current threat of climate change, we must develop new products that not only maximise the circularity of resources but also minimise climate change impacts. While these two goals are usually aligned, trade-offs exist. For instance, recycling biobased asphalt is a better end-of-life option than landfilling from a resource efficiency perspective. However, landfilling of biogenic non-biodegradable material leads to permanent carbon storage and, therefore, climate benefits. To fully understand the potential benefits and impacts of biobased circular innovations, we need metrics to capture their complexity from both a circular and climate point of view. This study explores the use of different circularity and sustainability metrics to understand the impacts and trade-offs of lignin-based versus bitumen-based asphalts. The analysis is done by calculating the Material Circularity Index (MCI) and two newly developed indicators quantifying the biogenic carbon storage (BCS) of products (BCS100 and c-BCS) while following the CE principles. In addition, the impacts regarding climate change, life cycle costs and ECI (environmental costs indicator) are also provided. Based on the MCI, it can be concluded that lignin-based asphalt roads have slightly higher material circularity than their bitumen-based counterparts. The BCS analysis indicated that the least circular lignin-based alternative sequesters the highest amount of carbon in the long term due to permanent storage in foundations. Despite these trade-offs, the results from the newly developed BCS indicators allowed to align both climate and circularity goals, guiding policymakers and industry actors to implement circular biobased strategies where the value of biobased materials is optimised. Finally, this article discusses the use of different circularity and environmental metrics for decision making in the context of a circular biobased economy.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Circular economy
en_US
dc.subject
Lignin
en_US
dc.subject
Asphalt
en_US
dc.subject
Biobased
en_US
dc.subject
Biogenic carbon
en_US
dc.subject
Metrics
en_US
dc.title
Metrics for minimising environmental impacts while maximising circularity in biobased products: The case of lignin-based asphalt
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2022-10-26
ethz.journal.title
Journal of Cleaner Production
ethz.journal.volume
379
en_US
ethz.journal.issue
Part 2
en_US
ethz.journal.abbreviated
J Cleaner Prod.
ethz.pages.start
134829
en_US
ethz.size
10 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02723 - Institut für Umweltentscheidungen / Institute for Environmental Decisions::09451 - Patt, Anthony G. / Patt, Anthony G.
en_US
ethz.date.deposited
2022-10-31T07:40:13Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-10-31T08:24:48Z
ethz.rosetta.lastUpdated
2023-02-07T07:24:28Z
ethz.rosetta.versionExported
true
ethz.COinS
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