Institutions of the University of Bayreuth
Lehrstuhl Ökologische Ressourcentechnologie

Charpentier Poncelet, Alexandre ; Helbig, Christoph ; Loubet, Philippe ; Beylot, Antoine ; Muller, Stéphanie ; Villeneuve, Jacques ; Laratte, Bertrand ; Thorenz, Andrea ; Tuma, Axel ; Sonnemann, Guido:
Losses and lifetimes of metals in the economy.
In: Nature Sustainability. Vol. 5 (2022) . - pp. 717-726.
DOI: https://doi.org/10.1038/s41893-022-00895-8

Charpentier Poncelet, Alexandre ; Loubet, Philippe ; Helbig, Christoph ; Beylot, Antoine ; Muller, Stéphanie ; Villeneuve, Jacques ; Laratte, Bertrand ; Thorenz, Andrea ; Tuma, Axel ; Sonnemann, Guido:
Midpoint and endpoint characterization factors for mineral resource dissipation: methods and application to 6000 data sets.
In: The International Journal of Life Cycle Assessment. Vol. 27 (2022) . - pp. 1180-1198.
DOI: https://doi.org/10.15495/EPub_UBT_00006705

Helbig, Christoph ; Kondo, Yasushi ; Nakamura, Shinichiro:
Simultaneously tracing the fate of seven metals at a global level with MaTrace‐multi.
In: Journal of Industrial Ecology. Vol. 26 (2022) Issue 3 . - pp. 923-936.
DOI: https://doi.org/10.1111/JIEC.13219

Helbig, Christoph ; Huether, Jonas ; Joachimsthaler, Charlotte ; Lehmann, Christian ; Raatz, Simone ; Thorenz, Andrea ; Faulstich, Martin ; Tuma, Axel:
A terminology for downcycling.
In: Journal of Industrial Ecology. Vol. 26 (2022) Issue 4 . - pp. 1164-1174.
DOI: https://doi.org/10.15495/EPub_UBT_00006399

Santillán‐Saldivar, Jair ; Gaugler, Tobias ; Helbig, Christoph ; Rathgeber, Andreas ; Sonnemann, Guido ; Thorenz, Andrea ; Tuma, Axel:
Design of an endpoint indicator for mineral resource supply risks in life cycle sustainability assessment : The case of Li‐ion batteries.
In: Journal of Industrial Ecology. Vol. 25 (2021) Issue 4 . - pp. 1051-1062.
DOI: https://doi.org/10.1111/jiec.13094

Charpentier Poncelet, Alexandre ; Helbig, Christoph ; Loubet, Philippe ; Beylot, Antoine ; Muller, Stéphanie ; Villeneuve, Jacques ; Laratte, Bertrand ; Thorenz, Andrea ; Tuma, Axel ; Sonnemann, Guido:
Life cycle impact assessment methods for estimating the impacts of dissipative flows of metals.
In: Journal of Industrial Ecology. Vol. 25 (2021) Issue 5 . - pp. 1177-1193.
DOI: https://doi.org/10.1111/JIEC.13136

Helbig, Christoph ; Bruckler, Martin ; Thorenz, Andrea ; Tuma, Axel:
An Overview of Indicator Choice and Normalization in Raw Material Supply Risk Assessments.
In: Resources. Vol. 10 (2021) Issue 8 . - No. 79.
DOI: https://doi.org/10.3390/resources10080079

Helbig, Christoph ; Schrijvers, Dieuwertje ; Hool, Alessandra:
Selecting and prioritizing material resources by criticality assessments.
In: One Earth. Vol. 4 (2021) Issue 3 . - pp. 339-345.
DOI: https://doi.org/10.1016/j.oneear.2021.02.006

Watari, Takuma ; Nansai, Keisuke ; Giurco, Damien ; Nakajima, Kenichi ; McLellan, Benjamin ; Helbig, Christoph:
Global Metal Use Targets in Line with Climate Goals.
In: Environmental Science & Technology. Vol. 54 (2020) Issue 19 . - pp. 12476-12483.
DOI: https://doi.org/10.1021/acs.est.0c02471

Sonderegger, Thomas ; Berger, Markus ; Alvarenga, Rodrigo ; Bach, Vanessa ; Cimprich, Alexander ; Dewulf, Jo ; Frischknecht, Rolf ; Guinée, Jeroen ; Helbig, Christoph ; Huppertz, Tom ; Jolliet, Olivier ; Motoshita, Masaharu ; Northey, Stephen ; Rugani, Benedetto ; Schrijvers, Dieuwertje ; Schulze, Rita ; Sonnemann, Guido ; Valero, Alicia ; Weidema, Bo ; Young, Steven B.:
Mineral resources in life cycle impact assessment: part I - a critical review of existing methods.
In: The International Journal of Life Cycle Assessment. Vol. 25 (2020) Issue 4 . - pp. 784-797.
DOI: https://doi.org/10.1007/S11367-020-01736-6

Berger, Markus ; Sonderegger, Thomas ; Alvarenga, Rodrigo ; Bach, Vanessa ; Cimprich, Alexander ; Dewulf, Jo ; Frischknecht, Rolf ; Guinée, Jeroen ; Helbig, Christoph ; Huppertz, Tom ; Jolliet, Olivier ; Motoshita, Masaharu ; Northey, Stephen ; Peña, Claudia A. ; Rugani, Benedetto ; Sahnoune, Abdelhadi ; Schrijvers, Dieuwertje ; Schulze, Rita ; Sonnemann, Guido ; Valero, Alicia ; Weidema, Bo ; Young, Steven B.:
Mineral resources in life cycle impact assessment: part II – recommendations on application-dependent use of existing methods and on future method development needs.
In: The International Journal of Life Cycle Assessment. Vol. 25 (2020) Issue 4 . - pp. 798-813.
DOI: https://doi.org/10.1007/S11367-020-01737-5

Helbig, Christoph ; Thorenz, Andrea ; Tuma, Axel:
Quantitative assessment of dissipative losses of 18 metals.
In: Resources, Conservation and Recycling. Vol. 153 (2020) . - No. 104537.
DOI: https://doi.org/10.1016/j.resconrec.2019.104537

Helbig, Christoph ; Bradshaw, Alex M. ; Thorenz, Andrea ; Tuma, Axel:
Supply Risk Considerations for the Elements in Nickel-Based Superalloys.
In: Resources. Vol. 9 (2020) Issue 9 . - No. 106.
DOI: https://doi.org/10.3390/resources9090106

Helbig, Christoph ; Bradshaw, Alex M. ; Wietschel, Lars ; Thorenz, Andrea ; Tuma, Axel:
Corrigendum to "Supply risks associated with lithium-ion battery materials" J. Clean. Prod. 172 (2018) 274-286.
In: Journal of Cleaner Production. Vol. 221 (2019) . - pp. 899-903.
DOI: https://doi.org/10.1016/j.jclepro.2019.03.062

Messmann, Lukas ; Helbig, Christoph ; Thorenz, Andrea ; Tuma, Axel:
Economic and environmental benefits of recovery networks for WEEE in Europe.
In: Journal of Cleaner Production. Vol. 222 (2019) . - pp. 655-668.
DOI: https://doi.org/10.1016/j.jclepro.2019.02.244

Cimprich, Alexander ; Bach, Vanessa ; Helbig, Christoph ; Thorenz, Andrea ; Schrijvers, Dieuwertje ; Sonnemann, Guido ; Young, Steven B. ; Sonderegger, Thomas ; Berger, Markus:
Raw material criticality assessment as a complement to environmental life cycle assessment : Examining methods for product‐level supply risk assessment.
In: Journal of Industrial Ecology. Vol. 23 (2019) Issue 5 . - pp. 1226-1236.
DOI: https://doi.org/10.1111/jiec.12865

Kolotzek, Christoph ; Helbig, Christoph ; Thorenz, Andrea ; Reller, Armin ; Tuma, Axel:
A company-oriented model for the assessment of raw material supply risks, environmental impact and social implications.
In: Journal of Cleaner Production. Vol. 176 (2018) . - pp. 566-580.
DOI: https://doi.org/10.1016/j.jclepro.2017.12.162

Helbig, Christoph ; Bradshaw, Alex M. ; Wietschel, Lars ; Thorenz, Andrea ; Tuma, Axel:
Supply risks associated with lithium-ion battery materials.
In: Journal of Cleaner Production. Vol. 172 (2018) . - pp. 274-286.
DOI: https://doi.org/10.1016/j.jclepro.2017.10.122

Hutner, Petra ; Helbig, Christoph ; Stindt, Dennis ; Thorenz, Andrea ; Tuma, Axel:
Transdisciplinary Development of a Life Cycle-Based Approach to Measure and Communicate Waste Prevention Effects in Local Authorities.
In: Journal of Industrial Ecology. Vol. 22 (2018) Issue 5 . - pp. 1050-1065.
DOI: https://doi.org/10.1111/jiec.12781

Helbig, Christoph ; Kolotzek, Christoph ; Thorenz, Andrea ; Reller, Armin ; Tuma, Axel ; Schafnitzel, Mario ; Krohns, Stephan:
Benefits of resource strategy for sustainable materials research and development.
In: Sustainable Materials and Technologies. Vol. 12 (2017) . - pp. 1-8.
DOI: https://doi.org/10.1016/j.susmat.2017.01.004

Cimprich, Alexander ; Young, Steven B. ; Helbig, Christoph ; Gemechu, Eskinder D. ; Thorenz, Andrea ; Tuma, Axel ; Sonnemann, Guido:
Extension of geopolitical supply risk methodology : Characterization model applied to conventional and electric vehicles.
In: Journal of Cleaner Production. Vol. 162 (2017) . - pp. 754-763.
DOI: https://doi.org/10.1016/j.jclepro.2017.06.063

Helbig, Christoph ; Gemechu, Eskinder D. ; Pillain, Baptiste ; Young, Steven B. ; Thorenz, Andrea ; Tuma, Axel ; Sonnemann, Guido:
Extending the geopolitical supply risk indicator : Application of life cycle sustainability assessment to the petrochemical supply chain of polyacrylonitrile-based carbon fibers.
In: Journal of Cleaner Production. Vol. 137 (2016) . - pp. 1170-1178.
DOI: https://doi.org/10.1016/j.jclepro.2016.07.214

Helbig, Christoph ; Wietschel, Lars ; Thorenz, Andrea ; Tuma, Axel:
How to evaluate raw material vulnerability : An overview.
In: Resources Policy. Vol. 48 (2016) . - pp. 13-24.
DOI: https://doi.org/10.1016/j.resourpol.2016.02.003

Gemechu, Eskinder D. ; Helbig, Christoph ; Sonnemann, Guido ; Thorenz, Andrea ; Tuma, Axel:
Import-based Indicator for the Geopolitical Supply Risk of Raw Materials in Life Cycle Sustainability Assessments.
In: Journal of Industrial Ecology. Vol. 20 (2016) Issue 1 . - pp. 154-165.
DOI: https://doi.org/10.1111/jiec.12279

Helbig, Christoph ; Bradshaw, Alex M. ; Kolotzek, Christoph ; Thorenz, Andrea ; Tuma, Axel:
Supply risks associated with CdTe and CIGS thin-film photovoltaics.
In: Applied Energy. Vol. 178 (2016) . - pp. 422-433.
DOI: https://doi.org/10.1016/j.apenergy.2016.06.102

Bensch, Stefan ; Kolotzek, Christoph ; Helbig, Christoph ; Thorenz, Andrea ; Tuma, Axel:
Decision Support System for the Sustainability Assessment of Critical Raw Materials in SMEs.
In: 48th Hawaii International Conference on System Sciences. - Piscataway, NJ : IEEE, 2015 . - pp. 846-855
DOI: https://doi.org/10.1109/HICSS.2015.107

Achzet, Benjamin ; Helbig, Christoph:
How to evaluate raw material supply risks : an overview.
In: Resources Policy. Vol. 38 (2013) Issue 4 . - pp. 435-447.
DOI: https://doi.org/10.1016/j.resourpol.2013.06.003