Abstract
Introduction: It is widely recognized that LCA is in most cases relative and contains uncertainties due to choices and data. This paper analyses the combination of the two comparative uncertainties. Basic concepts: We carefully define the idea of relativity and uncertainty within LCA. We finish off by giving an example of case where inappropriate handling of comparative uncertainties will lead to a misleading result for a decision-maker. Correlations: We develop a generic framework for probabilistic comparative LCA and analyse at which places correlations may be present. We also discuss the most convenient approaches for handling such correlated uncertainties. Conclusion: We put the elements discussed in a structure that provides a research agenda for dealing with comparative uncertainties in LCA.
Original language | English |
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Pages (from-to) | 1573-1579 |
Journal | International Journal of Life Cycle Assessment |
Volume | 24 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sept 2019 |
Keywords
- Comparative analysis
- Correlations
- Life cycle assessment
- Uncertainty