The growing adoption of life cycle assessment (LCA) across productive sectors has yet to be systematically examined in terms of its capacity to drive environmental transformation beyond methodological assessment. This systematic review (2018–2024) explores how LCA functions as a catalyst for environmental change in products, processes, and systems. Following PRISMA 2020 guidelines, 657 records from Scopus, Web of Science, and ScienceDirect were screened, yielding 50 high-quality studies assessed using the Critical Appraisal Skills Programme (CASP) tool; bibliometric network analysis via VOSviewer complemented qualitative thematic synthesis. Findings reveal a shift from conventional standardized life cycle assessment methodologies toward integrated frameworks such as LCSA, incorporating regionalized characterization factors, uncertainty quantification, and digital technologies. Applications across energy, agri-food, manufacturing, construction, and waste management support SDGs 12, 13, and 9 by identifying hotspots, comparing technologies, and informing policy. However, inconsistencies in functional units, system boundaries, and impact methods, alongside limited social and economic integration, restrict cross-study comparability. The evidence indicates that LCA is evolving from an assessment tool into a deliberative decision-making infrastructure, requiring harmonized yet context-specific methodologies and robust social indicators for equitable implementation. This review offers original value by combining bibliometric and critical methodological synthesis to map how life-cycle thinking induces environmental transformation, revealing the gap between evaluative capacity and transformative implementation.
Aguinaga et al. (Fri,) studied this question.
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