How to Conduct Prospective Life Cycle Assessment for Emerging Technologies? A Systematic Review and Methodological Guidance

Emerging technologies are expected to contribute to environmental sustainable development. However, throughout the development of novel technologies, it is unknown whether emerging technologies can lead to reduced environmental impacts compared to a potentially displaced mature technology. Additionally, process steps suspected to be environmental hotspots can be improved by process engineers early in the development of the emerging technology. In order to determine the environmental impacts of emerging technologies at an early stage of development, prospective life cycle assessment (LCA) should be performed. However, consistency in prospective LCA methodology is lacking. Therefore, this article develops a framework for a prospective LCA in order to overcome the methodological inconsistencies regarding prospective LCAs. The methodological framework was developed using literature on prospective LCAs of emerging technologies, and therefore, a literature review on prospective LCAs was conducted. We found 44 case studies, four review papers, and 17 papers on methodological guidance. Three main challenges for conducting prospective LCAs are identified: Comparability, data, and uncertainty challenges. The issues in defining the aim, functionality, and system boundaries of the prospective LCAs, as well as problems with specifying LCIA methodologies, comprise the comparability challenge. Data availability, quality, and scaling are issues within the data challenge. Finally, uncertainty exists as an overarching challenge when applying a prospective LCA. These three challenges are especially crucial for the prospective assessment of emerging technologies. However, this review also shows that within the methodological papers and case studies, several approaches exist to tackle these challenges. These approaches were systematically summarized within a framework to give guidance on how to overcome the issues when conducting prospective LCAs of emerging technologies. Accordingly, this framework is useful for LCA practitioners who are analyzing early-stage technologies. Nevertheless, further research is needed to develop appropriate scale-up schemes and to include uncertainty analyses for a more in-depth interpretation of results.

[1]  Marcel Weil,et al.  Approach and application of life cycle screening in early phases of process design: case study of supercritical water gasification , 2011 .

[2]  Thomas P. Seager,et al.  Novel Method of Sensitivity Analysis Improves the Prioritization of Research in Anticipatory Life Cycle Assessment of Emerging Technologies. , 2018, Environmental science & technology.

[3]  Ivan Muñoz,et al.  Prospective environmental and economic assessment of solar-assisted thermal energy recovery from wastewater through a sequencing batch biofilter granular reactor , 2019, Journal of Cleaner Production.

[4]  Sarah Mander,et al.  An approach to prospective consequential life cycle assessment and net energy analysis of distributed electricity generation , 2017 .

[5]  Krist V. Gernaey,et al.  Assessing the environmental sustainability of early stage design for bioprocesses under uncertainties: An analysis of glycerol bioconversion , 2016 .

[6]  Fabio Iraldo,et al.  Life cycle assessment of emerging environmental technologies in the early stage of development: A case study on nanostructured materials , 2019, Journal of Industrial Ecology.

[7]  Roland Clift,et al.  A life cycle assessment data analysis toolkit for the design of novel processes – A case study for a thermal cracking process for mixed plastic waste , 2018 .

[8]  M. Huijbregts,et al.  Evaluating uncertainty in environmental life-cycle assessment. A case study comparing two insulation options for a Dutch one-family dwelling. , 2003, Environmental science & technology.

[9]  Andrea Schreiber,et al.  Life Cycle Assessment and resource analysis of all-solid-state batteries , 2016 .

[10]  Michael Zwicky Hauschild,et al.  Environmental screening of potential biomass for green biorefinery conversion , 2018, Journal of Cleaner Production.

[11]  Mark A J Huijbregts,et al.  Power-law relationships for estimating mass, fuel consumption and costs of energy conversion equipments. , 2011, Environmental science & technology.

[12]  Mats Almemark,et al.  Municipal wastewater reclamation for non-potable reuse--environmental assessments based on pilot-plant studies and system modelling. , 2015, Water science and technology : a journal of the International Association on Water Pollution Research.

[13]  Ana Paula C. Sampaio,et al.  Life cycle assessment from early development stages: the case of gelatin extracted from tilapia residues , 2016, The International Journal of Life Cycle Assessment.

[14]  Bo Pedersen Weidema,et al.  Data quality management for life cycle inventories—an example of using data quality indicators☆ , 1996 .

[15]  Hans-Jörg Althaus,et al.  The ecoinvent Database: Overview and Methodological Framework (7 pp) , 2005 .

[16]  P. Jaramillo,et al.  A review of learning rates for electricity supply technologies , 2015 .

[17]  Ben Amor,et al.  Proposal of a framework for scale‐up life cycle inventory: A case of nanofibers for lithium iron phosphate cathode applications , 2016, Integrated environmental assessment and management.

[18]  Shelie A. Miller,et al.  Framework for analyzing transformative technologies in life cycle assessment. , 2015, Environmental science & technology.

[19]  Joyce Smith Cooper,et al.  Systematic Review Checklist , 2012 .

[20]  Jeroen Guinée,et al.  Does ex ante application enhance the usefulness of LCA? A case study on an emerging technology for metal recovery from e-waste , 2017, The International Journal of Life Cycle Assessment.

[21]  S E Taelman,et al.  The environmental sustainability of microalgae as feed for aquaculture: a life cycle perspective. , 2013, Bioresource technology.

[22]  Gregor Wernet,et al.  The ecoinvent database version 3 (part I): overview and methodology , 2016, The International Journal of Life Cycle Assessment.

[23]  A. Tillman,et al.  Influence of high gravity process conditions on the environmental impact of ethanol production from wheat straw. , 2014, Bioresource technology.

[24]  Jeroen B. Guinée,et al.  Ex-ante LCA of Emerging Technologies , 2018 .

[25]  Nils Thonemann,et al.  From laboratory to industrial scale: A prospective LCA for electrochemical reduction of CO2 to formic acid. , 2019, Environmental science & technology.

[26]  A. Mathys,et al.  Sustainability of insect use for feed and food: Life Cycle Assessment perspective , 2016 .

[27]  Grietjie Haupt,et al.  Learning from experts: fostering extended thinking in the early phases of the design process , 2015 .

[28]  Lauran van Oers,et al.  Environmental Implications of Future Demand Scenarios for Metals: Methodology and Application to the Case of Seven Major Metals , 2019 .

[29]  Martin Kumar Patel,et al.  Ex-ante environmental assessments of novel technologies - Improved caprolactam catalysis and hydrogen storage , 2011 .

[30]  Steven Van Passel,et al.  Social sustainability assessments in the biobased economy: Towards a systemic approach , 2018 .

[31]  Richard Wood,et al.  A Methodology for Integrated, Multiregional Life Cycle Assessment Scenarios under Large-Scale Technological Change. , 2015, Environmental science & technology.

[32]  Lucía Lijó,et al.  Transitioning towards the bio‐economy: Assessing the social dimension through a stakeholder lens , 2019, Corporate Social Responsibility and Environmental Management.

[33]  Paolo Tecchio,et al.  Ex-ante Life Cycle Assessment approach developed for a case study on bio-based polybutylene succinate , 2016 .

[34]  G. Lindbergh,et al.  Prospective Life Cycle Assessment of a Structural Battery , 2019, Sustainability.

[35]  Liselotte Schebek,et al.  Using Life‐Cycle Assessment in Process Design , 2003 .

[36]  Pascal Lesage,et al.  The application of the pedigree approach to the distributions foreseen in ecoinvent v3 , 2016, The International Journal of Life Cycle Assessment.

[37]  David Wallace,et al.  Approximate Life‐Cycle Assessment of Product Concepts Using Learning Systems , 2000 .

[38]  Arturo A. Keller,et al.  Critical Components of Uncertainty Communication in Life Cycle Assessments of Emerging Technologies , 2015 .

[39]  A. Björklund,et al.  Identifying hotspots of environmental impact in the development of novel inorganic polymer paving blocks from bauxite residue , 2018, Resources, Conservation and Recycling.

[40]  Timothy G. Gutowski,et al.  Prospective Environmental Analyses of Emerging Technology: A Critique, a Proposed Methodology, and a Case Study on Incremental Sheet Forming , 2020 .

[41]  Christopher L Mutel,et al.  Uncertain Environmental Footprint of Current and Future Battery Electric Vehicles. , 2018, Environmental science & technology.

[42]  Michael Carbajales-Dale,et al.  Life cycle assessment of emerging technologies: A review , 2019, Journal of Industrial Ecology.

[43]  Massimo Pizzol,et al.  Life cycle assessment of emerging technologies: The case of milk ultra-high pressure homogenisation , 2017 .

[44]  Jo Dewulf,et al.  Environmental sustainability assessment of a microalgae raceway pond treating aquaculture wastewater: From up-scaling to system integration. , 2015, Bioresource technology.

[45]  Sverker Molander,et al.  Prospective Life Cycle Assessment of Epitaxial Graphene Production at Different Manufacturing Scales and Maturity , 2017 .

[46]  Johannes Lindorfer,et al.  Methodological advancements in Life Cycle Process Design: A preliminary outlook , 2014 .

[47]  Sangwon Suh,et al.  The Role of Scale and Technology Maturity in Life Cycle Assessment of Emerging Technologies: A Case Study on Carbon Nanotubes , 2015 .

[48]  Fengqi You,et al.  How to assess the potential of emerging green technologies? Towards a prospective environmental and techno-economic assessment framework , 2019, Green Chemistry.

[49]  Jeroen B. Guinée,et al.  When the Background Matters: Using Scenarios from Integrated Assessment Models in Prospective Life Cycle Assessment , 2018, Journal of Industrial Ecology.

[50]  Scott Duncan,et al.  A survey of unresolved problems in life cycle assessment , 2008 .

[51]  Alessandra Zamagni,et al.  Life cycle sustainability assessment , 2012, The International Journal of Life Cycle Assessment.

[52]  Pascal Lesage,et al.  Empirically based uncertainty factors for the pedigree matrix in ecoinvent , 2016, The International Journal of Life Cycle Assessment.

[53]  Beatrice Salieri,et al.  Most important factors of variability and uncertainty in an LCA study of nanomaterials – Findings from a case study with nano titanium dioxide , 2017 .

[54]  Stefan Seeger,et al.  From laboratory to industrial scale: a scale-up framework for chemical processes in life cycle assessment studies , 2016 .

[55]  Jeroen B. Guinée,et al.  Applying an ex-ante life cycle perspective to metal recovery from e-waste using bioleaching , 2016 .

[56]  Christine Roxanne Hung,et al.  LiSET: A Framework for Early‐Stage Life Cycle Screening of Emerging Technologies , 2018, Journal of Industrial Ecology.

[57]  Gjalt Huppes,et al.  Framework for scenario development in LCA , 2000 .

[58]  Liselotte Schebek,et al.  Environmental Performance of Emerging Photovoltaic Technologies: Assessment of the Status Quo and Future Prospects Based on a Meta-Analysis of Life-Cycle Assessment Studies , 2019, Energies.

[59]  Gjalt Huppes,et al.  System boundary selection in life-cycle inventories using hybrid approaches. , 2004, Environmental science & technology.

[60]  Shelie A. Miller,et al.  Potential for Integrating Diffusion of Innovation Principles into Life Cycle Assessment of Emerging Technologies. , 2016, Environmental science & technology.

[61]  Paul N. Sharratt,et al.  Bridging the Gap from Pilot Plant Experimental Records to Life Cycle Inventory , 2017 .

[62]  Stefanie Hellweg,et al.  Scaling Relationships in Life Cycle Assessment , 2014 .

[63]  Magdalena Svanström,et al.  Life cycle assessment of cellulose nanofibrils production by mechanical treatment and two different pretreatment processes. , 2015, Environmental science & technology.

[64]  Adisa Azapagic,et al.  Environmental Assessment of Dimethyl Carbonate Production: Comparison of a Novel Electrosynthesis Route Utilizing CO2 with a Commercial Oxidative Carbonylation Process , 2016 .

[65]  François Maréchal,et al.  Systematic integration of LCA in process systems design: Application to combined fuel and electricity production from lignocellulosic biomass , 2011, Comput. Chem. Eng..

[66]  Igor Linkov,et al.  Illustrating anticipatory life cycle assessment for emerging photovoltaic technologies. , 2014, Environmental science & technology.

[67]  Mary Ann Curran,et al.  Life Cycle Assessment: a review of the methodology and its application to sustainability , 2013 .

[68]  Salvatore Miranda,et al.  An environmental study on starch aerogel for drug delivery applications: effect of plant scale-up , 2018, The International Journal of Life Cycle Assessment.

[69]  P. Falcone,et al.  Social Life Cycle Approach as a Tool for Promoting the Market Uptake of Bio-Based Products from a Consumer Perspective , 2018 .

[70]  M. Hauschild,et al.  Techno-environmental assessment of the green biorefinery concept: Combining process simulation and life cycle assessment at an early design stage. , 2018, The Science of the total environment.

[71]  Thomas P. Seager,et al.  Life cycle assessment of emerging technologies: Evaluation techniques at different stages of market and technical maturity , 2019, Journal of Industrial Ecology.

[72]  A. Damgaard,et al.  Life cycle assessment as development and decision support tool for wastewater resource recovery technology. , 2016, Water research.

[73]  Stig Irving Olsen,et al.  Life cycle assessment of nanoadsorbents at early stage technological development , 2018 .

[74]  Roland W. Scholz,et al.  Scenario Modelling in Prospective LCA of Transport Systems. Application of Formative Scenario Analysis (11 pp) , 2005 .

[75]  Hanna Dura,et al.  Prospective time-resolved LCA of fully electric supercap vehicles in Germany. , 2015, Integrated environmental assessment and management.

[76]  Jaco Quist,et al.  Anticipatory Life Cycle Assessment of sol-gel derived anti-reflective coating for greenhouse glass , 2019, Journal of Cleaner Production.

[77]  Thomas L. Theis,et al.  Life cycle considerations of nano-enabled agrochemicals: are today's tools up to the task? , 2018 .

[78]  A. Horvath,et al.  Grand challenges for life-cycle assessment of biofuels. , 2011, Environmental science & technology.

[79]  Thomas P. Seager,et al.  Anticipatory life-cycle assessment for responsible research and innovation , 2014 .

[80]  Ernst Worrell,et al.  Prospective life cycle assessment of an antibacterial T-shirt and supporting business decisions to create value , 2015 .

[81]  S. Hellweg,et al.  Prospective Environmental Life Cycle Assessment of Nanosilver T-Shirts , 2011, Environmental science & technology.

[82]  Jiaqi Lu,et al.  Deducing targets of emerging technologies based on ex ante life cycle thinking: Case study on a chlorine recovery process for polyvinyl chloride wastes , 2019 .

[83]  Sangwon Suh,et al.  Rapid Life-Cycle Impact Screening Using Artificial Neural Networks. , 2017, Environmental science & technology.

[84]  S. Hellweg,et al.  Emerging approaches, challenges and opportunities in life cycle assessment , 2014, Science.

[85]  Stefan Seeger,et al.  Predicting the environmental impact of a future nanocellulose production at industrial scale: Application of the life cycle assessment scale-up framework , 2018 .

[86]  Paolo Masoni,et al.  Combining life cycle assessment and qualitative risk assessment: the case study of alumina nanofluid production. , 2014, The Science of the total environment.

[87]  Björn A. Sandén,et al.  Environmental Assessment of Emerging Technologies: Recommendations for Prospective LCA , 2018, Journal of Industrial Ecology.

[88]  Almudena Hospido,et al.  A review of methodological issues affecting LCA of novel food products , 2010 .

[89]  M. Karlström,et al.  Positive and negative feedback in consequential life-cycle assessment , 2007 .

[90]  Jeroen Guinée,et al.  Life cycle assessment of emerging technologies at the lab scale: The case of nanowire‐based solar cells , 2019, Journal of Industrial Ecology.

[91]  Daniele Rotolo,et al.  Emerging Technology , 2001 .

[92]  Marcelle C. McManus,et al.  Use of LCA as a development tool within early research: challenges and issues across different sectors , 2013, The International Journal of Life Cycle Assessment.

[93]  Eric Masanet,et al.  Life-cycle modeling framework for generating energy and greenhouse gas emissions inventory of emerging technologies in the chemical industry , 2018 .

[94]  Mingming Hu,et al.  Life cycle assessment of 3D printing geo‐polymer concrete: An ex‐ante study , 2019, Journal of Industrial Ecology.

[95]  Robin Girard,et al.  LCA of emerging technologies: addressing high uncertainty on inputs' variability when performing global sensitivity analysis. , 2017, The Science of the total environment.

[96]  Anna Maria Ferrari,et al.  Assessment of Environmental Performance of TiO2 Nanoparticles Coated Self-Cleaning Float Glass , 2017 .

[97]  Mathias Janssen,et al.  Life cycle assessment of biomass-based ethylene production in Sweden  —  is gasification or fermentation the environmentally preferable route? , 2015, The International Journal of Life Cycle Assessment.

[98]  A. Audenaert,et al.  The Future of Ex-Ante LCA? Lessons Learned and Practical Recommendations , 2019, Sustainability.

[99]  Willie J.G.M. Peijnenburg,et al.  Combining ex-ante LCA and EHS screening to assist green design: A case study of cellulose nanocrystal foam , 2018 .

[100]  Nilgun Ciliz,et al.  Life cycle assessment and environmental life cycle costing analysis of lignocellulosic bioethanol as an alternative transportation fuel , 2016 .

[101]  Sangwon Suh,et al.  A framework for technological learning in the supply chain: A case study on CdTe photovoltaics , 2016 .

[102]  Sverker Molander,et al.  Prospective life cycle assessment of graphene production by ultrasonication and chemical reduction. , 2014, Environmental science & technology.

[103]  Stefanie Hellweg,et al.  Wind Power Electricity: The Bigger the Turbine, The Greener the Electricity? , 2012, Environmental science & technology.