Life Cycle Assessment under Uncertainty: A Scoping Review

Today, life cycle assessment (LCA) is the most widely used approach to model and calculate environmental impacts of products processes. The results LCAs are often said be deterministic, even though real-life applications uncertain vague. uncertainty, which may simply ignored, one key factors influencing reliability LCA outcomes. Numerous sources uncertainty in classified various ways, such as parameter choices, spatial variability, temporal variability between objects, etc. Through a scoping review, present study aims identify assess frequency with studies reflect what tools cope map knowledge gaps field reveal challenges opportunities have robust model. It also investigated database, methodology, software, etc., been process. indicate that significant were process parameters, data use different methodologies databases. probabilistic or stochastic modeling, using numerical methods Monte Carlo simulation, was dominating tool uncertainty. There four dominant methodologies: CML, ReCiPe, IMPACT 2002+, TRACI. commonly software databases SimaPro® Ecoinvent®, respectively.