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Environmental Economics

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

By Frank Werner

In an environmental existence cycle evaluate of goods (LCA), an unambiguous, scientifically established, ‘objective’ attribution of fabric and effort flows to a product is natural fiction. this can be as a result of basic epistemological stipulations of LCA as a modelling technique below the complexity of our socio-economic process. as an alternative, a variety of psychological types and values consultant this attribution. This results in a practical version in a particular selection state of affairs. This e-book exhibits for the 1st time how psychological versions 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 has to be taken under consideration for the attribution of fabric and effort flows to a product. in a different way, development suggestions prompt via an LCA may perhaps end up to even aggravate the environmental state of affairs if reassessed from a meta-perspective. due to this e-book, the declare of unambiguitiy (‘objectivity’) of the existence cycle stock needs to be deserted. A group-model construction procedure for LCA is constructed that enables one to understand the choice makers' psychological versions and values within the stock research on a case- and situation-specific foundation. in simple terms by means of this, LCA effects becomes appropriate in a decision-making approach. case reports at the modelling of recycling and different end-of-life thoughts of aluminium home windows and beech wooden railway sleepers in LCA supplement the methodological half. This ebook is a ‘must have’ for researchers, specialists and practitioners within the fields of decision-oriented lifestyles cycle overview in addition to product-related environmental administration, modelling and decision-making.

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Additional info for Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values (Eco-Efficiency in Industry and Science)

Sample text

In practice, establishing an LCA is an iterative process, as adjustments of decisions from preceding phases have to be made during the course of the study. , due to the lack of data or data quality available, due to needs for the avoidance of allocation or because of inequalities encountered in the definition of different functional units to be compared. 2 Some characteristics of current LCA-methodology The consideration of environmental impacts caused over the entire life cycle of a product from raw material extraction, production, use and disposal is a constitutive characteristic of LCA.

Part V contains the second case study, which covers modelling of end-oflife options for beech wood railway sleepers. Chapter 15 and Chapter 16 provide an overview of the current market characteristics of post-consumer wood in Switzerland; the characteristics and use options of post-consumer wood and on the wood flow management politics in the light of sustainable development. In Chapter 17, the attribution and allocation problems related to wood are outlined and two wood-specific guidelines for LCA of wood products – the User’s guide by the American Forest & and Paper Association42 and the methodological appendix of the European research project Life-Sys Wood43 – are presented and discussed.

Thus, two different levels of comparison can be distinguished: 77 78 79 80 ISO/EN 14040, chap. , the material selection or the selection of a production process. e. marketing and lobbying, are secondary but nonetheless frequent uses of LCA-results (see also Chap. 2). Furthermore, LCA-results can be used as a basis for environmental labelling82. , the selection of a product, the selection of a supplier for the same product as procurement decisions, or the evaluation of different design options. In all these decision situations, the environmental criterion is only one among many.

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