By Frank Werner
In an environmental lifestyles cycle overview of goods (LCA), an unambiguous, scientifically established, ‘objective’ attribution of fabric and effort flows to a product is natural fiction. this is often a result of primary epistemological stipulations of LCA as a modelling strategy less than the complexity of our socio-economic process. as an alternative, quite a few psychological types and values advisor this attribution. This ends up in a practical version in a particular selection situation.
This e-book exhibits for the 1st time how psychological types and values impression this attribution within the lifestyles cycle stock step of LCA. one of many key findings is that different administration principles for a sustainable use of fabrics has to be taken into consideration for the attribution of fabric and effort flows to a product. in a different way, development thoughts advised by means of an LCA may possibly prove to even aggravate the environmental scenario if reassessed from a meta-perspective.
As a outcome of this ebook, the declare of unambiguitiy (‘objectivity’) of the existence cycle stock has to be deserted. A group-model development technique for LCA is built that enables one to know the choice makers' psychological versions and values within the stock research on a case- and situation-specific foundation. basically through this, LCA effects becomes correct in a decision-making process.
Two case reviews at the modelling of recycling and different end-of-life innovations of aluminium home windows and beech wooden railway sleepers in LCA supplement the methodological part.
This publication is a ‘must have’ for researchers, specialists and practitioners within the fields of decision-oriented existence cycle evaluation 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
1); • Decision theory considering LCA a decision support tool (Chap. 2); • Comparison of the ‘descriptive’ power of current impact assessment methods in view of the environmental dimension of sustainable development underlying LCA as a normative concept (Chap. 3). 2, a model of normative decision analysis by Sieben and Schildbach (1994) is introduced. The elements of LCA are structured according to this model to clarify the influence of mental models and values during the setting up of an LCA as a decision-making process (Chap.
3). The assumption concerning the organisational principle as determinant of the behaviour of the socio-economic system made implicitly or explicitly during the development of the product system must also be seen as an element of complexity reduction. 7. Complexity reduction and the setting of system boundaries are as characteristic as crucial for dealing with practical problems71. Many of the abovestated characteristics of LCA (Chap. 2) can be interpreted as response to the complexity of the socio-economic system and its interrelationship with the ecosphere.
The elements of LCA are structured according to this model to clarify the influence of mental models and values during the setting up of an LCA as a decision-making process (Chap. 3). As a result of this chapter, conclusions are drawn concerning the requirements of LCA-modelling. In line with the scope of this book, emphasis is put on the definition of the product system and its LCI as a model of the life cycle of a product (Chap. 4). Part III investigates, which mental models and values guide the life cycle inventory analysis.