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  1. Employees

Språkvelger

Norsk

Johan Berg Pettersen

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Johan Berg Pettersen

Associate Professor, Industrial Ecology Programme
Department of Energy and Process Engineering
Faculty of Engineering

johan.berg.pettersen@ntnu.no
+4793809682 Trondheim, Realfagbygget, E4-150, Gløshaugen
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About Research Publications Teaching Outreach

About

CV

I have for 20 years worked with application and development of life cycle assessment and life cycle engineering, in research and development for offshore energy systems, infrastructure engineering for rail and road transport, agriculture and aquaculture, space technology, metal processing and product manufacturing.

In these years I've been involved in business startup, innovation cluster development, and held adjunct positions at several universities in Norway. 

My interests is what we call circular and life cycle engineering. How can we design and create an equitable, sustainable transition?

Successful transition depends on innovation in technology and organizations. It also means change in behaviour, culture and practice. To improve society we have to change it, and this is why my research divides between consumption and production systems.

I teach life cycle assessment, sustainable engineering and industrial ecology methods. I head studies in Energy and Sustainability at the Faculty of Engineering Science, and I am study program manager for MSc studies at Industrial Ecology Programme, including the International MSc in Industrial Ecology (MSINDECOL).

Competencies

  • Environmental Analysis
  • Environmental efficiency
  • Environmental sustainability
  • Life Cycle Assessment
  • Lifecycle assessment
  • Sustainable design
  • Sustainable infrastructure
  • Sustainable production
  • bærekraftig forbruk
  • circular economy
  • sirkulær økonomi

Research

Sustainable consumption and production is to "provide more and better with less. It is to increase utility and at the same time reduce environmental impacts, improve resource effectiveness,  and promote more sustainable ways of living".

My research activity aims to evaluate and guide measures towards sustainable production and consumption. We make use of life cycle-based assessment methods to evaluate solutions at the level of technology or society. This can be called circular and life cycle engineering.  

Within consumption we investigate household consumption of durable goods and possible ways to extend their lifetime, and how the waste management system for municipal solid waste needs to develop in a circular economy. This activity is together with Sintef Energy, and Consumption research Norway (SIFO). 

Within production we work with sustainable metallurgy. We evaluate alternative metal process options for silicon, and waste valorization routes connected with metal and mineral wastes. This activity is a collaboration with the Department of Materials Science and Engineering and international partners, and for zero emission metal production in the FME ZeMe center. 

We are part of the Industrial Ecology Programme, an interdisciplinary research programme specialized in environmental sustainability analysis.

SisAl Pilot

Innovative pilot for Silicon production with low environmental impact using secondary Aluminium and silicon raw material (H2020 2020-2024)

LASTING

Sustainable prosperity through product durability. How can the lifespans of consumer goods be increased? (Forskningsrådet 2020-2023)

CircWtE

Waste-to-Energy and Municipal Solid Waste management systems in Circular Economy (Forskningsrådet 2021-2024)

SisAl slag valorization

Replacing carbon with secondary Al for Si production, and in parallel making a slag being a perfect precursor for HPA (EiT Raw Materials, 2021-2023)

RemovAl

Removing the waste streams from the primary Aluminum production in Europe. The RemovAL project will combine, optimize and scale-up developed processing technologies for extracting base and critical metals from such industrial residues (H2020 2018-2022)

Publications

Long-term lifetime trends of large appliances since the introduction in Norwegian households

Proof that there has been a shift in lifetime for some household appliances in the last few decades, and that some have stayed the same.

Incineration economy: Waste management policy failing the circular economy transition in Norway

How has recycling rate and life cycle environmental performance of household solid waste management in Norway changed from 2009 to 2019?

LCA of recycling aluminium in bottom ash, dross and shavings

Life cycle assessment of recovering hard-to-recycle aluminium waste/side-streams and two salt-slag management routes: valorisation or landfill.

Evaluating the current Norwegian clothing system and a circular alternative

Considering Norwegian households in 2018, we find that realizing in full consumer willingness to rent various garment types or buy them secondhand may reduce water, climate and energy demand by about 47-62%.

Life cycle assessment of pig iron production from bauxite residue

Simulation-based LCA shows that from bauxite residue (red mud) may in renewable energy scenarios reduce impacts on climate change, human health and ecosystem damages, at the cost of increased energy use compared to conventional production of pig iron.

Electronic Waste Treatment Flows in Norway: Investigating recycling rates and embodied emissions

We find that 68% of sorted WEEE sent to recycling treatments is recycled into reusable material, reduced to 58% if we include loss from the system. The recycling rate for precious metals is significant for the total CO2-eq footprint of WEEE EOL.

Circular economy and life cycle assessment of alumina production: Simulation-based comparison of Pedersen and Bayer processes

The Pedersen process is the simultaneous extraction of iron and alumina from bauxite ore. This study compares Pedersen with the conventional Bayer process, assessing a portfolio of life cycle impacts and resource indicators.

Examples of publications from recent years. 

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Krych, Kamila Krystyna; Pettersen, Johan Berg. (2025) Long-term lifetime trends of large appliances since the introduction in Norwegian households. Journal of Industrial Ecology
    Academic article

2024

  • Mattson, Kim Rainer; Pettersen, Johan Berg; Brattebø, Helge. (2024) Incineration economy: Waste management policy failing the circular economy transition in Norway. Resources, Conservation and Recycling
    Academic article
  • Vallejo Olivares, Alicia; Pastor Valles, Elisa; Pettersen, Johan Berg; Tranell, Maria Gabriella. (2024) LCA of recycling aluminium incineration bottom ash, dross and shavings in a rotary furnace and environmental benefits of salt-slag valorisation . Waste Management
    Academic article
  • Pastor Valles, Elisa; Vallejo Olivares, Alicia; Tranell, Maria Gabriella; Pettersen, Johan Berg. (2024) Measuring circular economy through life cycle assessment - challenges and recommendations based on a study on recycling of Al dross, bottom ash and shavings. The Australasian Institute of Mining and Metallurgy
    Academic chapter/article/Conference paper
  • Krych, Kamila Krystyna; Mueller, Daniel Beat; Pettersen, Johan Berg. (2024) The “nature” and “nurture” of product lifetimes in dynamic stock modeling. Journal of Industrial Ecology
    Academic article
  • Gjedde, Philip; Carrer, Fabio; Pettersen, Johan Berg; Verones, Francesca. (2024) Effect factors for marine invasion impacts on biodiversity. The International Journal of Life Cycle Assessment
    Academic article
  • Nøstvold, Cathrine; Pastor Valles, Elisa; Andersen, Vegar; Tranell, Maria Gabriella; Pettersen, Johan Berg. (2024) Life Cycle Assessment of Metallurgical Grade Silicon Comparing Charge Mixtures and Yields. Journal of Sustainable Metallurgy
    Academic article

2023

  • Pettersen, Johan Berg. (2023) Sidemålet og eventyret om da Askeladden møtte døden. www.universitetsavisa.no
    Feature article
  • Pettersen, Johan Berg. (2023) Språkpolitiske klipp fra Sannhets- og forsoningskommisjonen. www.universitetsavisa.no
    Feature article
  • Pettersen, Johan Berg; Lundqvist, Ulrika. (2023) Student-Centered Learning Activities for Key Sustainability Competencies in Online Courses with Many Students.
    Academic chapter/article/Conference paper
  • Eide, Kristin Melum; Pettersen, Johan Berg. (2023) Rektor beklager overfor det sørsamiske folket. Men hva er veien videre?. Universitetsavisa
    Feature article
  • Krych, Kamila Krystyna; Pettersen, Johan Berg. (2023) The weakest link: How technical lifespan extension can be counter-effective for climate goals.
    Academic chapter/article/Conference paper
  • Mora Sojo, Maria Carolina; Krych, Kamila Krystyna; Pettersen, Johan Berg. (2023) Evaluating the current Norwegian clothing system and a circular alternative. Resources, Conservation and Recycling
    Academic article
  • Ma, Yan; Pettersen, Johan Berg. (2023) Life cycle assessment of pig iron production from bauxite residue: A European case study. Journal of Industrial Ecology
    Academic article
  • Mattson, Kim Rainer; Lindgreen Lauritsen, Lærke; Pettersen, Johan Berg. (2023) ELECTRONIC WASTE TREATMENT FLOWS IN NORWAY: INVESTIGATING RECYCLING RATES AND EMBODIED EMISSIONS. Detritus - Multidisciplinary journal for Waste Resources and Residues
    Academic article

2022

  • De Scryver, An; Chanoine, Augustin; Laurent, Alexis; Pettersen, Johan Berg. (2022) Roadmap towards a PEFCR for space activities . Publications Office of the European Union
    Report
  • Surup, Gerrit Ralf; Kaffash, Hamideh; Ma, Yan; Trubetskaya, Anna; Pettersen, Johan Berg; Tangstad, Merete. (2022) Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production. Energies
    Academic article
  • Ma, Yan; Preveniou, Athina; Kladis, Anastasios; Pettersen, Johan Berg. (2022) Circular economy and life cycle assessment of alumina production: Simulation-based comparison of Pedersen and Bayer processes. Journal of Cleaner Production
    Academic article

2021

  • Mora Sojo, María Carolina; Pettersen, Johan Berg; Krych, Kamila. (2021) Quantifying the Norwegian households' clothing system and its environmental impacts for a transition towards a more circular economy. Norwegian University of Science and Technology
    Masters thesis
  • Krych, Kamila; Pettersen, Johan Berg. (2021) A stock-driven model for assessing environmental benefits of product lifetime extension in Norwegian households.
    Academic chapter/article/Conference paper

2019

  • Song, Xingqiang; Liu, Ying; Pettersen, Johan Berg; Brandão, Miguel; Ma, Xiaona; Røberg, Stian. (2019) Life cycle assessment of recirculating aquaculture systems: A case of Atlantic salmon farming in China. Journal of Industrial Ecology
    Academic article

2017

  • Song, Xingqiang; Pettersen, Johan Berg; Pedersen, Kristine Bondo; Røberg, Stian. (2017) Comparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norway. Journal of Cleaner Production
    Academic article
  • Pettersen, Johan Berg; Song, Xingqiang. (2017) Life cycle impact assessment in the arctic: Challenges and research needs. Sustainability
    Academic article

2014

  • Larsen, Hogne Nersund; Skaar, Christofer; Solli, Christian; Pettersen, Johan; Loveland, Simon. (2014) Green Procurement as a Means Towards Resilient Public Organizations.
    Academic chapter/article/Conference paper
  • Hammervold, Johanne; Pettersen, Johan; Bjørnbet, Marit Moe. (2014) Lifecycle Assessment and Lifecycle Costing of Aluminium Wrought-to-Wrought Recycling. Materials Science Forum
    Academic article

2013

  • Pettersen, Johan Berg; Hung, Christine Roxanne; Solli, Christian; Steeneveldt, Rosetta; Kerr, Scott Peter; Aas, Nina. (2013) A Guide to Better Wells: Environmental Life-Cycle Assessment of Historical, Current and Future Best Practice in Drilling. Society of Petroleum Engineers
    Academic chapter/article/Conference paper
  • Larsen, Hogne Nersund; Pettersen, Johan; Solli, Christian; Hertwich, Edgar G.. (2013) Investigating the Carbon Footprint of a University - The case of NTNU. Journal of Cleaner Production
    Academic article
  • Refsgaard, Karen; Bergsdal, Håvard; Berglann, Helge; Pettersen, Johan. (2013) Greenhouse gas emissions from life cycle assessment of Norwegian food production systems. Acta agriculturæ Scandinavica. Section A, Animal science
    Academic article

2011

  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) ”Biogass – fra idealisme til næringsutvikling”. Stavanger Aftenblad
    Feature article
  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) ”Biogass tar ikke av”. Adresseavisen
    Feature article
  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) Forutsetninger for biogassproduksjon i Norge. En flerfaglig casestudie av Ørland og Frosta. SINTEF Teknologi og samfunn
    Report

2008

  • Pettersen, Johan; Hertwich, Edgar G.. (2008) Critical review: Life-cycle inventory procedures for long-term release of metals. Environmental Science and Technology
    Academic literature review
  • Pettersen, Johan; Hertwich, Edgar G.. (2008) Occupational health impacts: offshore crane lifts in life cycle assessment. The International Journal of Life Cycle Assessment
    Academic article

2007

  • Pettersen, Johan; Hertwich, Edgar G.. (2007) Development and application of life-cycle inventory and impact assessment methods. NTNU
    Doctoral dissertation
  • Pettersen, Johan; Hertwich, Edgar G.. (2007) Overall evaluation of offshore drilling fluid technology: Development and application of life-cycle inventory and impact assessment methods. Tapir Akademisk Forlag Doktoravhandlinger ved NTNU (251)
    Doctoral dissertation

2006

  • Pettersen, Johan; Peters, Glen; Hertwich, Edgar G.. (2006) Marine Ecotoxic Effect of Pulse-Emissions in Life-Cycle Impact Assessment. Environmental Toxicology and Chemistry
    Academic article

2004

  • Pettersen, Johan; Peters, Glen; Hertwich, Edgar G.. (2004) Marine ecotoxic pulse effects in LCIA. IndEcol working papers (2004/9)
    Report
  • Skaar, Christofer; Undeland, Tore Marvin; Pettersen, Johan. (2004) Økoeffektiv elektrisitetsproduksjon: Vindkraft i et livsløpsperspektiv. Industrial Ecology Theses (4)
    Masters thesis

Journal publications

  • Krych, Kamila Krystyna; Pettersen, Johan Berg. (2025) Long-term lifetime trends of large appliances since the introduction in Norwegian households. Journal of Industrial Ecology
    Academic article
  • Mattson, Kim Rainer; Pettersen, Johan Berg; Brattebø, Helge. (2024) Incineration economy: Waste management policy failing the circular economy transition in Norway. Resources, Conservation and Recycling
    Academic article
  • Vallejo Olivares, Alicia; Pastor Valles, Elisa; Pettersen, Johan Berg; Tranell, Maria Gabriella. (2024) LCA of recycling aluminium incineration bottom ash, dross and shavings in a rotary furnace and environmental benefits of salt-slag valorisation . Waste Management
    Academic article
  • Krych, Kamila Krystyna; Mueller, Daniel Beat; Pettersen, Johan Berg. (2024) The “nature” and “nurture” of product lifetimes in dynamic stock modeling. Journal of Industrial Ecology
    Academic article
  • Gjedde, Philip; Carrer, Fabio; Pettersen, Johan Berg; Verones, Francesca. (2024) Effect factors for marine invasion impacts on biodiversity. The International Journal of Life Cycle Assessment
    Academic article
  • Nøstvold, Cathrine; Pastor Valles, Elisa; Andersen, Vegar; Tranell, Maria Gabriella; Pettersen, Johan Berg. (2024) Life Cycle Assessment of Metallurgical Grade Silicon Comparing Charge Mixtures and Yields. Journal of Sustainable Metallurgy
    Academic article
  • Pettersen, Johan Berg. (2023) Sidemålet og eventyret om da Askeladden møtte døden. www.universitetsavisa.no
    Feature article
  • Pettersen, Johan Berg. (2023) Språkpolitiske klipp fra Sannhets- og forsoningskommisjonen. www.universitetsavisa.no
    Feature article
  • Eide, Kristin Melum; Pettersen, Johan Berg. (2023) Rektor beklager overfor det sørsamiske folket. Men hva er veien videre?. Universitetsavisa
    Feature article
  • Mora Sojo, Maria Carolina; Krych, Kamila Krystyna; Pettersen, Johan Berg. (2023) Evaluating the current Norwegian clothing system and a circular alternative. Resources, Conservation and Recycling
    Academic article
  • Ma, Yan; Pettersen, Johan Berg. (2023) Life cycle assessment of pig iron production from bauxite residue: A European case study. Journal of Industrial Ecology
    Academic article
  • Mattson, Kim Rainer; Lindgreen Lauritsen, Lærke; Pettersen, Johan Berg. (2023) ELECTRONIC WASTE TREATMENT FLOWS IN NORWAY: INVESTIGATING RECYCLING RATES AND EMBODIED EMISSIONS. Detritus - Multidisciplinary journal for Waste Resources and Residues
    Academic article
  • Surup, Gerrit Ralf; Kaffash, Hamideh; Ma, Yan; Trubetskaya, Anna; Pettersen, Johan Berg; Tangstad, Merete. (2022) Life Cycle Based Climate Emissions of Charcoal Conditioning Routes for the Use in the Ferro-Alloy Production. Energies
    Academic article
  • Ma, Yan; Preveniou, Athina; Kladis, Anastasios; Pettersen, Johan Berg. (2022) Circular economy and life cycle assessment of alumina production: Simulation-based comparison of Pedersen and Bayer processes. Journal of Cleaner Production
    Academic article
  • Song, Xingqiang; Liu, Ying; Pettersen, Johan Berg; Brandão, Miguel; Ma, Xiaona; Røberg, Stian. (2019) Life cycle assessment of recirculating aquaculture systems: A case of Atlantic salmon farming in China. Journal of Industrial Ecology
    Academic article
  • Song, Xingqiang; Pettersen, Johan Berg; Pedersen, Kristine Bondo; Røberg, Stian. (2017) Comparative life cycle assessment of tailings management and energy scenarios for a copper ore mine: A case study in Northern Norway. Journal of Cleaner Production
    Academic article
  • Pettersen, Johan Berg; Song, Xingqiang. (2017) Life cycle impact assessment in the arctic: Challenges and research needs. Sustainability
    Academic article
  • Hammervold, Johanne; Pettersen, Johan; Bjørnbet, Marit Moe. (2014) Lifecycle Assessment and Lifecycle Costing of Aluminium Wrought-to-Wrought Recycling. Materials Science Forum
    Academic article
  • Larsen, Hogne Nersund; Pettersen, Johan; Solli, Christian; Hertwich, Edgar G.. (2013) Investigating the Carbon Footprint of a University - The case of NTNU. Journal of Cleaner Production
    Academic article
  • Refsgaard, Karen; Bergsdal, Håvard; Berglann, Helge; Pettersen, Johan. (2013) Greenhouse gas emissions from life cycle assessment of Norwegian food production systems. Acta agriculturæ Scandinavica. Section A, Animal science
    Academic article
  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) ”Biogass – fra idealisme til næringsutvikling”. Stavanger Aftenblad
    Feature article
  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) ”Biogass tar ikke av”. Adresseavisen
    Feature article
  • Pettersen, Johan; Hertwich, Edgar G.. (2008) Critical review: Life-cycle inventory procedures for long-term release of metals. Environmental Science and Technology
    Academic literature review
  • Pettersen, Johan; Hertwich, Edgar G.. (2008) Occupational health impacts: offshore crane lifts in life cycle assessment. The International Journal of Life Cycle Assessment
    Academic article
  • Pettersen, Johan; Peters, Glen; Hertwich, Edgar G.. (2006) Marine Ecotoxic Effect of Pulse-Emissions in Life-Cycle Impact Assessment. Environmental Toxicology and Chemistry
    Academic article

Part of book/report

  • Pastor Valles, Elisa; Vallejo Olivares, Alicia; Tranell, Maria Gabriella; Pettersen, Johan Berg. (2024) Measuring circular economy through life cycle assessment - challenges and recommendations based on a study on recycling of Al dross, bottom ash and shavings. The Australasian Institute of Mining and Metallurgy
    Academic chapter/article/Conference paper
  • Pettersen, Johan Berg; Lundqvist, Ulrika. (2023) Student-Centered Learning Activities for Key Sustainability Competencies in Online Courses with Many Students.
    Academic chapter/article/Conference paper
  • Krych, Kamila Krystyna; Pettersen, Johan Berg. (2023) The weakest link: How technical lifespan extension can be counter-effective for climate goals.
    Academic chapter/article/Conference paper
  • Krych, Kamila; Pettersen, Johan Berg. (2021) A stock-driven model for assessing environmental benefits of product lifetime extension in Norwegian households.
    Academic chapter/article/Conference paper
  • Larsen, Hogne Nersund; Skaar, Christofer; Solli, Christian; Pettersen, Johan; Loveland, Simon. (2014) Green Procurement as a Means Towards Resilient Public Organizations.
    Academic chapter/article/Conference paper
  • Pettersen, Johan Berg; Hung, Christine Roxanne; Solli, Christian; Steeneveldt, Rosetta; Kerr, Scott Peter; Aas, Nina. (2013) A Guide to Better Wells: Environmental Life-Cycle Assessment of Historical, Current and Future Best Practice in Drilling. Society of Petroleum Engineers
    Academic chapter/article/Conference paper

Report

  • De Scryver, An; Chanoine, Augustin; Laurent, Alexis; Pettersen, Johan Berg. (2022) Roadmap towards a PEFCR for space activities . Publications Office of the European Union
    Report
  • Mora Sojo, María Carolina; Pettersen, Johan Berg; Krych, Kamila. (2021) Quantifying the Norwegian households' clothing system and its environmental impacts for a transition towards a more circular economy. Norwegian University of Science and Technology
    Masters thesis
  • Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) Forutsetninger for biogassproduksjon i Norge. En flerfaglig casestudie av Ørland og Frosta. SINTEF Teknologi og samfunn
    Report
  • Pettersen, Johan; Hertwich, Edgar G.. (2007) Development and application of life-cycle inventory and impact assessment methods. NTNU
    Doctoral dissertation
  • Pettersen, Johan; Hertwich, Edgar G.. (2007) Overall evaluation of offshore drilling fluid technology: Development and application of life-cycle inventory and impact assessment methods. Tapir Akademisk Forlag Doktoravhandlinger ved NTNU (251)
    Doctoral dissertation
  • Pettersen, Johan; Peters, Glen; Hertwich, Edgar G.. (2004) Marine ecotoxic pulse effects in LCIA. IndEcol working papers (2004/9)
    Report
  • Skaar, Christofer; Undeland, Tore Marvin; Pettersen, Johan. (2004) Økoeffektiv elektrisitetsproduksjon: Vindkraft i et livsløpsperspektiv. Industrial Ecology Theses (4)
    Masters thesis

Teaching

Courses

  • TEP4295 - Bærekraftig ingeniørfag
  • TEP5100 - Industriell økologi, prosjekt
  • TEP4220 - Miljøpåvirkningsindikatorer for beslutningsstøtte
  • INGG2301 - Ingeniørfaglig systemtenkning
  • INGG2300 - Ingeniørfaglig systemtenkning
  • TEP4223 - Livsløpsvurdering
  • TEP4930 - Industriell økologi, masteroppgave
  • INGT2300 - Ingeniørfaglig systemtenkning
  • TMM4285 - Livsløpsytelse for aluminiumsprodukter
  • INGA2301 - Ingeniørfaglig systemtenkning
  • INGA2300 - Ingeniørfaglig systemtenkning
  • INGT2301 - Ingeniørfaglig systemtenkning

I teach introduction to industrial ecology and sustainable engineering at undergraduate level, life cyle assessment as method and applied sustainability assessment in courses at graduate level.

The teaching in bachelor courses introduces concepts and methods for sustainability, sustainability assessment and sustainable engineering, climate mitigation and circular economy. It covers, at introduction level, material flow analysis, life cycle assessment, energy analysis, footprint methods and environmentally extended input-output analysis. 

I teach the graduate course in life cycle assessment (LCA), and contribute lectures in master courses, on sustainability and environmental systems analysis applied to various engineering fields: marine resources, aquaculture, metal production, and process industry. 

I am course administrator for the project (15 ECTS) and master thesis (30 ETCS) at the Industrial Ecology Programme.  

Supervision

I supervise the following PhDs as main supervisor

  • Kim Rainer Mattson, materialeffektivitet og miljøkonsekvenser av norsk husholdsningsavfall (CircWtE, NFR-prosjekt)
  • Elisa Pastor Valles, livsløpsvurdering av nye silisiumproduksjonsprosesser (SisAl Pilot, Horizon)
  • Kamila Krych, miljøeffekter og levetidsforlengelse for varige husholdningsprodukter (LASTING) - Download PhD thesis (2025)

 

I also support the following PhDs as co-supervisor:

  • Fei Song, Modelling human impacts on marine ecosystem services in LCIA (Atlantis project)
  • Philip Gjedde, Modelling the impacts of invasive species on marine ecosystems in LCIA (Atlantis project)
  • Pinar Kavak Gülbeyaz, Climate mitigation and biodiversity protection with life cycle assessment (Pattern project)
  • Moritz Langhorst, Use of hydrogen in aluminium and steel industry (HyInHeat project) 
  • Marthe Alnes Høiberg, Modelling the impacts of marine plastic litter in LCIA (Atlantis project) - Download PhD thesis (2024)

 

Master thesis supervision at NTNU

  • Rakib Ahmed (2024): Sustainable clothing systems: a comparative life cycle assessment of T-shirts made from primary and recycled materials
  • Maren Kirchner (2024): How can refurbishment improve the environmental impact of smartphones in Norway?
  • Kim Kluin (2024): Life-cycle assessment of solid wood and engineered wood tables
  • Helene Nossum Godhavn (2024): Environmental impact of household food waste management in Norway in 2022
  • Mads Vingborg Andersen (2024): Environmental impact of metals in Norwegian electric and electronic products
  • Martin Våge (2023) Assessing the environmental viability of silicon production by aluminothermic reduction: A comparative life cycle analysis
  • Lærke Lindgreen Lauritsen (2023) Environmental impacts of treating e-waste in Norway
  • Ola Hunstad Ask (2023) Life Cycle Assessment of Primary Aluminium Production by Hydrogen Diffusion Anode
  • Pedro Patrique Ferreira da Silva (2023) Environmental performance of leather and leather-like materials applied to footwear
  • Irene Barnosell Roura (2023) The environmental impacts of extreme water and wastewater decentralization: a life cycle assessment approach
  • Leonhard Maxim Bodau (2022) Analyzing the sustainability of the aluminothermic reduction of silicon metal: A combined approach of MFA and  spatial LCA 
  • Cathrine Nøstvold (2022) Mass and energy balanced life cycle assessment of metallurgical grade silicon production
  • Baitong Huang (2022) LCA of unmanned aerial vehicle delivery (withheld from the public)
  • Joaquin Quezada Ortega (2022) Life cycle assessment of bauxite residue treatment: Case studies for dry stacking, dry disposal and mud farming
  • Peerapas Thongsawas (2022) Carbon footprint and circular economy potential of furniture in a newly built neighborhood
  • Ina Charlotte Berntsen (2022) A life cycle Assessment of a waste management system introducing sorting of food waste and a central sorting facility
  • Simon B. Aaland (2022) Process simulation based life cycle assessment of a subsea compression system: identifying the largest influences on environmental impact
  • María Carolina Mora Sojo (2021) Quantifying the Norwegian household's clothing system and its environmental impacts for a transition towards a more circular economy
  • Elisa Pastor Vallés (2021) Life cycle assessment of silicon metal by aluminothermic reduction: an industrial symbiosis approach
  • Philip Gjedde (2021)Life cycle analysis of remediation and utilization of bauxite residue: evaluation of technologies from a location perspective
  • Yingtao Zhou (2021) Life cycle assessment of concrete from bauxite residue in China
  • Helene Jortveit Lauvland (2021) The Carbon Footprint of Furniture
  • Alessandro Sterpellone (2020) Circular economy potential of inorganic polymers from bauxite resodues and other slags: an LCA study
  • Ben Whitaker (2020) Comparative life cycle assessment of deep-sea mining with onshore mining
  • Paul Erik Schabedoth (2020) Life cycle assessment of rocket launches and the effects of the propellant choice on their environmental performance
  • Ingvild Wang (2020) Life cycle assessment of iron extraction from bauxite residue
  • Andrea A. Nistad (2020) Current and future energy use for Atlantic salmon farming in recirculating aquaculture systems in Norway
  • Sofie Møller (2019) Reduction of CO2 emissions in the salmon farming industry: the potential for energy efficiency measures and electrification
  • Julie Gade Gærbitz (2019) Bærekraftig lokal energiforsyning til et nytt hyttekonsept
  • Marius B. Thorvaldsen (2019) Bærekraftige hytter
  • Daeyeon Cho (2019) Visualisation of zero-emission neighbourhood for architects and the application to Nidarvoll Skole in Trondheim
  • Yasmine Zaki Abdelaziz (2018) Life cycle assessment of phosphorous management for RAS sludge

 

Bachelor thesis

  • Mansoureh Asadi (2022, co-sup.) Rivebetong fra avfall til ressurs - muligheter og utfordringer

Outreach

NTNU vet ikke selv hvor mange studenter det har

Ytring i Universitetsavisa. For å vite hvordan det går med «gjennomføring på normert tid» må en studieprogramleder forholde seg til et kaos av mangelfulle kilder og plattformer.

Sidemålet og eventyret om da Askeladden møtte døden

Ytring i Universitetsavisa. Samiske språk er den oversette lillebror i den såkalte "store språkdebatten" mellom bokmål og nynorsk.

Språkpolitiske klipp fra Sannhets- og forsoningskommisjonen

Ytring i Universitetesavisa. Forsoning skjer gjennom anerkjennelse og gjensidig respekt. I dag er samer og samisk kultur behandlet på en måte som grenser til orientalisme.

Ny studie: Ikke send brukbare klær ut av landet

nrk.no: Gjenbruk har blitt mer og mer trendy de siste åra. Det kan gi store miljøgevinster, mener forskere – så lenge det gjøres rett.

Brukte klær er bra, men færre best

Gemini.no: Det er store miljøgevinster for Norge om vi slutter å sende brukbare klær ut av landet. Dette går fram av en ny studie av klesforbruket til norske husholdninger.

2025

  • Documentary
    Song, Fei; Verones, Francesca; Pettersen, Johan Berg; Dorber, Martin. (2025) Marine plastics profiles of european countries. https://doi.org/10.5281/zenodo.15064445 https://doi.org/10.5281/zenodo.15064445 [Internet] 2025-03-21

2024

  • Poster
    Krych, Kamila Krystyna; Laitala, Kirsi; Pettersen, Johan Berg. (2024) Tough is not enough: product lifetime policy needs more than durability . Gordon Research Conference Industrial Ecology (GRC) Gordon Research Conference , Les Diablerets 2024-05-27 - 2024-05-31
  • Academic lecture
    Mattson, Kim Rainer; Pettersen, Johan Berg; Brattebø, Helge. (2024) Incineration Economy: Waste Management Policy Failing the Circular Economy Transition. Technical University of Denmark 4th Conference on Life Cycle Assessment of Waste , Helsingør 2024-06-11 - 2024-06-14
  • Poster
    Song, Fei; Dorber, Martin; Pettersen, Johan Berg; Verones, Francesca. (2024) Harmonizing beach litter data: A cornerstone for impact assessment. SETAC SETAC EUROPE 34TH ANNUAL MEETING , SEVILLE, SPAIN 2024-05-05 - 2024-05-09

2023

  • Interview
    Pettersen, Johan Berg; Krych, Kamila Krystyna. (2023) Ny studie: Ikke send brukbare klær ut av landet. nrk.no nrk.no [Internet] 2023-12-16
  • Interview
    Krych, Kamila Krystyna; Pettersen, Johan Berg; Agdestein, Maren. (2023) Brukte klær er bra, men færre best. gemini.no gemini.no [Internet] 2023-12-16
  • Lecture
    Mattson, Kim Rainer; Lindgreen Lauritsen, Lærke; Pettersen, Johan Berg. (2023) Material and embedded GHG emission flows of electronic waste treatment in Norway. IWWG - International Waste Working Group 19TH INTERNATIONAL SYMPOSIUM ON WASTE MANAGEMENT, RESOURCE RECOVERY AND SUSTAINABLE LANDFILLING (Sardinia 2023) 2023-10-09 - 2023-10-13
  • Lecture
    Pettersen, Johan Berg. (2023) Back to the future: fra kollokvium til medstudentevaluering i masteroppgaver. NTNU Læringsfestivalen , Trondheim 2023-05-08 - 2023-05-09
  • Academic lecture
    Mattson, Kim Rainer; Pettersen, Johan Berg. (2023) The full picture: Life cycle assessment of Norwegian household MSW generation - Impacts and potential environmental benefits of the complete waste management system. International Society for Industrial Ecology 11th International Conference on Industry Ecology , Leiden 2023-07-02 - 2023-07-05
  • Interview
    Krych, Kamila Krystyna; Pettersen, Johan Berg. (2023) Kort intervju i "God morgen Trøndelag". NRK Trøndelag NRK Trøndelag [TV] 2023-12-14
  • Lecture
    Bjørnland, Thea; Langaas, Mette; Pettersen, Johan Berg. (2023) Samarbeidslæring og vurdering i store emner . NTNU Læringsfestivalen , Trondheim 2023-05-08 - 2023-05-09
  • Lecture
    Pettersen, Johan Berg. (2023) Experiences with sustainable engineering and student centered learning for 1 000+ students. NORDTEK, Aarhus Universitet NORDTEK 2023 – 51st annual meeting and conference , Aarhus, Denmark 2023-08-17 - 2023-08-17
  • Lecture
    Fletcher, Kate Tanya; Klepp, Ingun Grimstad; Pettersen, Johan Berg; Desjardin, Lorelou; Utskarpen, Audrun; Throne-Holst, Harald. (2023) Overproduction and product longevity (panel discussion). OsloMet Lost in the masses: is product longevity the solution? Lasting final seminar , Oslo 2023-10-18 -
  • Academic lecture
    Verones, Francesca; Dorber, Martin; Pettersen, Johan Berg. (2023) Development of an Effect factor for marine plastics’ impact on cultural ecosystem service. International Society for Industrial Ecology ISIE 2023 Conference “Transitions in a world in turmoil" , Leiden, the Netherlands 2023-07-01 - 2023-07-05
  • Lecture
    Verones, Francesca; Pettersen, Johan Berg; Dorber, Martin. (2023) Development of an Effect factor for marine plastics’ impact on cultural ecosystem service. International Society for Industrial Ecology 11th International conference on industrial ecology , Leiden, the Netherlands 2023-07-02 - 2023-07-05
  • Academic lecture
    Song, Fei; Dorber, Martin; Pettersen, Johan Berg; Verones, Francesca. (2023) Development of an effect factor for marine plastics’ impact on cultural ecosystem service. International Society for Industrial Ecology 11th International Conference on Industrial Ecology (ISIE2023) , Leiden 2023-07-02 - 2023-07-05

2022

  • Poster
    Song, Fei; Dorber, Martin; Verones, Francesca; Pettersen, Johan Berg. (2022) Suffocating the ocean: modeling the impacts of plastic debris on carbon sequestration. SETAC SETAC Europe 32nd Annual Meeting , Copenhagen 2022-05-15 - 2022-05-19
  • Lecture
    Song, Fei; Dorber, Martin; Verones, Francesca; Pettersen, Johan Berg. (2022) Development of an effect factor for marine plastics’ impact on marine carbon sequestration. LCA Discussion Forum 82nd LCA Discussion Forum Addressing the issue of plastic pollution: status quo and the way forward , Zurich 2022-11-04 - 2022-11-04
  • Lecture
    Pettersen, Johan Berg. (2022) Student-centered teaching practices. Examples and experience from online teaching of 1 000 bachelor students at NTNU . NTNU Fakultet for ingeniørvitenskap Friday Talk at Faculty of Engineering , Trondheim (online) 2022-10-21 - 2022-10-21
  • Lecture
    Pettersen, Johan Berg. (2022) Uncertainty in life cycle assessment of deep-sea mining. NTNU NTNU Ocean Week , Trondheim 2022-05-01 - 2022-05-04
  • Academic lecture
    Pettersen, Johan Berg; Gjedde, Philip; Yan, Ma. (2022) Final results of LCA and exergy analysis of RemovAL technologies. RemovAl FINAL CROSS-FERTILISATION WORKSHOP UNDER REMOVAL H2020 PROJECT , Athens 2022-10-10 - 2022-10-10
  • Lecture
    Song, Fei; Dorber, Martin; Verones, Francesca; Pettersen, Johan Berg. (2022) Integrate the impact of marine plastic debris on carbon sequestration into life cycle impact assessment . The Institute of Life Cycle Assessment, Japan EcoBalance 2022 , Fukuoka 2022-10-30 - 2022-11-02

2021

  • Lecture
    Pettersen, Johan Berg. (2021) Circular economy and (hydro)metallurgy. NTNU HydroMetEC , Tromdheim (online) 2021-04-14 - 2021-04-15
  • Academic lecture
    Pettersen, Johan Berg; Ma, Yan; Gjedde, Philip. (2021) Circular economy in metals processing and mineral waste valorization. NTNU NTNU Sustainability - Circular Economy and Resource Efficiency live & online event , Trondheim 2021-10-20 - 2021-10-20
  • Academic lecture
    Pettersen, Johan Berg; Schabedoth, Paul Erik; Partamies, Noora. (2021) Life cycle of propellants: Environmental benchmark of current "green" propellants. ESA ESA Clean Space Industry Days , Nordwijk (online) 2021-09-20 - 2021-10-24
  • Lecture
    Pettersen, Johan Berg. (2021) Life cycle assessment of the Si process. NTNU Silicon Production and Refining: Short Course , Trondheim, online 2021-10-04 - 2021-10-07
  • Poster
    Preveniou, Athina; Ma, Yan; Pettersen, Johan Berg; Kladis, Anastasios; van der Eijk, Casper. (2021) Life Cycle Assessment of the modified Pedersen method – challenges of an alternative alumina production route. LCM2021 10th International Conference on Life Cycle Management , Stuttgart (online) 2021-09-05 - 2021-09-08
  • Academic lecture
    Pettersen, Johan Berg. (2021) LAKSEOPPDRETT - Bærekraftsaspekter og bærekraftsprestasjon . Den Norske Veterinærforening Veterinærdagene 2021 , Tromdheim 2021-05-27 - 2021-05-28
  • Lecture
    Pettersen, Johan Berg. (2021) Critical factors for sustainable hydrometallurgy. NTNU HydroMetEC , Tromdheim (online) 2021-04-14 - 2021-04-15
  • Academic lecture
    Pettersen, Johan Berg. (2021) Food, energy and circular economy: Challenges and opportunities for Norway and salmon farming in RAS. Aqua Nor AquaNor 2021 , Trondheim 2021-09-26 - 2021-09-28
  • Academic lecture
    Pettersen, Johan Berg; Ma, Yan; Gjedde, Philip. (2021) Circular economy and Life Cycle impacts of valorisation pathways for Bauxite Residue. European Aluminium Association Cross-fertilization workshop – towards a more sustainable AALina production in Europe , online 2021-09-23 - 2021-09-24
  • Poster
    Vallés, Elisa Pastor; Ma, Yan; Pettersen, Johan Berg. (2021) Life Cycle Assessment of silicon metal by aluminothermic reduction . LCM2021 10th International Conference on Life Cycle Management , Stuttgart (online) 2021-09-05 - 2021-09-08

2019

  • Academic lecture
    Pettersen, Johan Berg. (2019) Alloys and life cycle design. European Aluminium Association & Aluminium Innovation Hub Workshop of the Aluminium Innovation Hub: Digitalisation for smart processes and product design , Trondheim 2019-06-12 - 2019-06-13
  • Academic lecture
    Pettersen, Johan Berg. (2019) Energy use in aquaculture, the case of Norwegian salmon. Aarhus University Internal seminar , Roskilde 2019-05-10 - 2019-05-10
  • Academic lecture
    Pettersen, Johan Berg. (2019) Kunnskapsbehov - energi i havbruk. Fornybarklyngen og NCE Aquatech Cluster Workshop - Energi i havbruk , Trondheim 2019-01-17 - 2019-01-17
  • Academic lecture
    Pettersen, Johan Berg. (2019) Life cycle thinking in industrial development. NTNU Ocean Week 2019 , Trondheim 2019-05-06 - 2019-05-09
  • Academic lecture
    Pettersen, Johan Berg; Møller, Sofie. (2019) Energi i havbruket, kunnskapsbehov og muligheter. NCE Aquatech Cluster NCE Aquatech årskonferanse 2019 , Trondheim 2019-02-26 - 2019-02-27
  • Academic lecture
    Pettersen, Johan Berg. (2019) ESA Space LCI 2019: Life cycle inventories for space technology. University of Bordeaux Open seminar , Bordeaux 2019-04-05 - 2019-04-05
  • Popular scientific lecture
    Pettersen, Johan Berg. (2019) Potensialet i sirkulærøkonomisk taknegang. NCE Aquatech Cluster NCE Aquatech fagforum: avfallsbehandling og sirkulærøkonomi , Trondheim 2019-09-16 - 2019-09-16
  • Popular scientific lecture
    Pettersen, Johan Berg. (2019) Circular economy research at NTNU. Trøndelag fylke Baltic Industrial Symbiosis Council , Trondheim 2019-11-27 - 2019-11-27

2018

  • Academic lecture
    Song, Xingqiang; Pettersen, Johan Berg. (2018) Life cycle assessment of subsea mine tailings disposal. Akvaplan Niva Arctic Frontiers , Tromsø 2018-01-21 - 2018-01-26
  • Lecture
    Pettersen, Johan Berg. (2018) LCA and lightweighting with aluminium. NTNU Industrial Ecology Programme Nutrients and metals - internal workshop , Trondheim 2018-06-12 - 2018-06-12
  • Academic lecture
    Pettersen, Johan Berg. (2018) Miljøvurdering av slam fra RAS: livsløpsvurdering av slambehandlingsløsinger i midt-Norge. NCE Aquatech Cluster Bruk av fiskegjødsel/slam fra settefiskanlegg , Trondheim 2018-08-23 - 2018-08-23
  • Lecture
    Pettersen, Johan Berg. (2018) Sustainability, environment & products. NTNU PK8202 - Analysis and Modelling for Sustainable Manufacturing and Logistics , San Marino 2018-04-17 - 2018-04-19
  • Lecture
    Pettersen, Johan Berg. (2018) Industrial ecology and environmental sustainability for marine resources. NTNU TMR4137 - Sustainable Utilization of Marine Resources , Trondheim 2018-09-04 - 2018-09-04
  • Lecture
    Pettersen, Johan Berg. (2018) Life cycle assessment of lightweight materials. NCE Maritine CleanTech, Danish Materials Network, NAPIC Workshop: Sustainable materials for the ocean industries , Stord 2018-03-07 - 2018-03-07
  • Academic lecture
    Pettersen, Johan Berg. (2018) Life cycle assessment (LCA) & model integration. ITRB, ADMIRIS & National Technical University of Athens Innovation Forum H2020 , Athen 2018-10-04 - 2018-10-04

2017

  • Lecture
    Pettersen, Johan Berg. (2017) Hva er bærekraftig vekst for oppdrettsnæringen?. NTNU Ocean «Framtid i havets hender» - Brohodekonferansen 2017 , Sistranda, Frøya 2017-10-31 - 2017-11-01
  • Lecture
    Pettersen, Johan Berg. (2017) Sintef og LCA. Sintef Sintef internarrangement , Trondheim 2017-05-03 - 2017-05-03
  • Lecture
    Pettersen, Johan Berg. (2017) LCA in practice - cases and project experience. NTNU Industrial Ecology TEP4220 - Forståelse og kvantifisering av miljøpåvirkninger på økosystemer , Trondheim 2017-03-14 - 2017-03-14
  • Lecture
    Pettersen, Johan Berg. (2017) LCA in RAS: environmental aspects of RAS technology. NTNU VM6010 Resirkulerende akvakultursystemer - RAS , Trondheim 2017-10-27 - 2017-10-27
  • Lecture
    Pettersen, Johan Berg. (2017) Aluminium products seen from a sustainability perspective. NTNU NAPIC NTNU aluminium product innovation centre (NAPIC) kick-off , Trondheim 2017-09-18 - 2017-09-19
  • Lecture
    Pettersen, Johan Berg. (2017) Environment and sustainability in biotechnology - why and how?. NTNU Dept. of Biotechnology and Food Science Lunch seminar , Trondheim 2017-10-11 - 2017-10-11
  • Academic lecture
    Song, Xingqiang; Pettersen, Johan Berg. (2017) Environmental assessment of aquaculture systems using life cycle assessment (LCA). Chinese Academy of Fishery Science 2017 International symposium on engineering of healthy aquaculture , Shanghai 2017-09-21 - 2017-09-23
  • Academic lecture
    Pettersen, Johan Berg; Song, Xingqiang. (2017) RAS waste treatment: challenges and opportunities within the circular economy paradigm. NordicRAS & DTU Aqua 4th NordicRAS Workshop on Recirculating Aquaculture Systems , Aalborg 2017-10-12 - 2017-10-13
  • Academic lecture
    Pettersen, Johan Berg. (2017) Life cycle assessment of space propellants. European Space Agency Clean Space Industrial Days , ESTEC, Noordwijk 2017-10-24 - 2017-10-26
  • Poster
    Pettersen, Johan Berg; Song, Xingqiang. (2017) Arctic life cycle impact assessment - gaps in high-north LCA. LCM Conference Series LCML2017 , Luxembourg 2017-09-03 - 2017-09-06
  • Poster
    Pettersen, Johan Berg; Bergsdal, Håvard; Silva, Eduardo João; Ouziel, Jonathan. (2017) Space propellants and high-energetic chemicals: Data barriers, solutions, uncertainty and confidentiality in an LCI database. LCM Conference Series LCML2017 , Luxembourg 2017-09-03 - 2017-09-06
  • Poster
    Pettersen, Johan Berg; Bjørnbet, Marit Moe; Bergsdal, Håvard; Silva, Eduardo João; Ouziel, Jonathan. (2017) Environmental repercussions of metal additive manufacturing technologies and consequences for LCM in space and aerospace industry – a life cycle assessment review. LCM Conference Series LCM2017 , Luxembourg 2017-09-03 - 2017-09-06

2015

  • Academic lecture
    Pettersen, Johan Berg; Bergsdal, Håvard; Bjørnbet, Marit Moe; Silva, Eduardo João; Estrela, Marco António; Chaves, Paulo Alexandre. (2015) Ecodesign for Space and Aerospace: What happens when we make ecodesign relevant for demanding applications?. CEAS Challenges in European Aerospace (5th CEAS Air & Space Conference) , Delft 2015-11-07 - 2015-11-11

2011

  • Academic lecture
    Hagen, Øivind; Hung, Christine; Josefsen, Kjell Domaas; Pettersen, Johan. (2011) ”A manure-based eco-park: how society and technology affect the environmental performance of biogas from manure”. (presented by C. Hung). International Society for Industrial Ecology The 6th International Conference on Industrial Ecology, Berkeley, USA, 7-10 June , Berkeley 2011-06-07 - 2011-06-10

2008

  • Academic lecture
    Pettersen, Johan; Hertwich, Edgar G.; Paulsen, John Eirik; Jensen, Bjørnung; Omland, Tor Henry. (2008) Examples of application of uncertainty in life-cycle interpretation of offshore drilling fluid technology. Society of Environmental Toxicology and Chemistry SETAC Europe 2008 , Warsaw 2008-05-25 - 2008-05-29

2007

  • Academic lecture
    Pettersen, Johan; Hertwich, Edgar G.. (2007) Uncertainty as decision support in life-cycle interpretation. International Society for Industrial Ecology (ISIE) International Society for Industrial Ecology (ISIE) Conference 2007 , Toronto 2007-06-17 - 2007-06-20
  • Poster
    Pettersen, Johan; Hertwich, Edgar G.. (2007) Metal ecotoxicity as a separate LCIA category. Society of Environmental Toxicology and Chemistry (SETAC) SETAC-Europe 17th Annual Meeting , Porto 2007-05-20 - 2007-05-24

2006

  • Academic lecture
    Pettersen, Johan; Paulsen, John Eirik. (2006) Overall evaluation of the environmental benefits of the zero-discharge requirement in the Barents Sea - Life-cycle ecotoxic contributions from drilling operations in the Arctic. Norges Geotekniske Institutt (NGI) 5th International Conference on Contaminants in Freezing Ground , Oslo 2006-05-21 - 2006-05-25
  • Academic lecture
    Paulsen, John Eirik; Pettersen, Johan; Jensen, Bjørnung; Svensen, Torgrim. (2006) A Management Technique That Integrates And Glues Cost And Environmental Performance Targets In E&P Drilling. Society of Petroleum Engineers SPE/IADC Indian Drilling Technology Conference and Exhibition , Mumbai 2006-10-16 - 2006-10-18
  • Poster
    Pettersen, Johan; Hertwich, Edgar G.. (2006) Marine ecotoxicity of metals and minerals in LCA. Society of Environmental Toxicology and Chemistry SETAC-Europe 16th Annual Meeting 2006 , Den Haag 2006-05-07 - 2006-05-11

2005

  • Poster
    Strømman, Anders Hammer; Solli, Christian; Peters, Glen; Pettersen, Johan; Hertwich, Edgar G.. (2005) Comparative hybrid life cycle assessment of natural gas based fuel chains for transportation. SETAC Europe SETAC Europe 15th annual meeting , Lille 2005-05-22 - 2005-05-26

2004

  • Poster
    Pettersen, Johan; Hertwich, Edgar G.. (2004) Lagrangian fate and exposure assessment for marine aquatic ecotoxic impacts in LCIA. Society of Environmental Toxicology and Chemistry (SETAC) SETAC-Europe 2004 , Prague 2004-04-19 - 2004-04-22

2003

  • Academic lecture
    Nekså, Petter; Pettersen, Johan; Skaugen, Geir. (2003) CO2 refrigeration, air conditioning and heat pump technology. X Technologica Innovations in Refrigeration adn Air Conditioning, Milan, June 27-28 2003 , Milano 2003-06-28 -

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