Download Ambiguities in Decision-oriented Life Cycle Inventories: The by Frank Werner PDF

By Frank Werner

In an environmental lifestyles cycle overview of goods (LCA), an unambiguous, scientifically dependent, ‘objective’ attribution of fabric and effort flows to a product is natural fiction. this is often end result of the primary epistemological stipulations of LCA as a modelling method below the complexity of our socio-economic approach. as an alternative, numerous psychological versions and values consultant this attribution. This ends up in a sensible version in a selected selection situation.

This publication indicates for the 1st time how psychological types and values effect this attribution within the lifestyles cycle stock step of LCA. one of many key findings is that the various administration ideas for a sustainable use of fabrics needs to be taken under consideration for the attribution of fabric and effort flows to a product. in a different way, development concepts instructed by means of an LCA may well end up to even aggravate the environmental scenario if reassessed from a meta-perspective.

As a final result of this booklet, the declare of unambiguitiy (‘objectivity’) of the lifestyles cycle stock has to be deserted. A group-model development approach for LCA is built that enables one to understand the choice makers' psychological types and values within the stock research on a case- and situation-specific foundation. in simple terms by means of this, LCA effects becomes correct in a decision-making process.

Two case reviews at the modelling of recycling and different end-of-life ideas of aluminium home windows and beech wooden railway sleepers in LCA supplement the methodological part.

This ebook is a ‘must have’ for researchers, experts and practitioners within the fields of decision-oriented existence cycle evaluate in addition to product-related environmental administration, modelling and decision-making.

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Extra info for Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values

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4 Impossibility to validate LCA-models In a decision situation, several action alternatives are compared. The selected alternative can be understood as creative model for real world interventions. The implementation of the creative model puts the selected alternative into practice, creating ‘reality’. What of the appropriateness of LCA-models and their creative rules? Can LCA-models be validated and its results verified? In fact, there is no empirical approach for validating any of the models used or set up during the conduct of an LCA34.

6). The allocation problem in LCA is a sub-problem of the attribution problem. The term allocation, however, is also used for other purposes, especially in economic theory with respect to the allocation of scarce resources. Ambiguity in the setting up of the product system requires the implicit or explicit application of mental models or value choices67. The influence of mental models and value choices on the attribution is a central aspect of this book, which is intensely discussed in Part III.

Life Cycle Assessment Goal Definition System Boundaries Direct Applications Inventory Analysis Interpree tation - Product - Design Strategic Planning Lobbying Marketing others Impact Assessmentt and Valuation Figure 2-1. Methodological structure of LCA (ISO/EN 14040:10; reprinted with permission from the European Committee for Normalisation, Brussels) Step 2: Life Cycle Inventory Analysis ((Inventory Analysis) involves data collection and calculation procedures to quantify relevant environmental 47 48 see ISO/EN 14040, Lindfors et al.

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