Life Cycle Thinking and Waste Policy Between Science and Society

Sammanfattning: This study investigates the application of life cycle thinking (LCT) and life cycle assessment (LCA) in the field of waste management from perspectives based in the social sciences. LCT is explored through the theoretical construct of regimes, drawing theoretical resources from a combination of the ‘pragmatic turn’, the economics of conventions and transition theory.This work is based on eight papers treating theoretical arguments, qualitative and quantitative analysis, case studies and semi-structured interview data. LCT is placed in the context of contemporary societies. LCA is seen as an instrument of quantification and evaluation used by actors which have both similar and disparate objectives, and who offer justifications for its use through arguments embedded in conflicting pluralities of worth. Furthermore, this work analyses LCA as a tool for the qualification of the waste hierarchy; a waste management principle articulating a convention based on closed material cycles. This study argues that the technological trajectory of waste management regimes has been significantly influenced, inter alia, by actors’ institutional articulation of the waste hierarchy at national and territorial levels. It discusses the legitimacy of LCA, and the quantitative application of LCT, as an intermediary object used to qualify the waste hierarchy. Furthermore, LCT is placed in a prospective context which may be used to assist in the transition toward sustainable waste management.