Life Cycle Assessment (LCA)

1 Environmental Issues SeriesA guide to approaches, experiencesand information sourcesLife Cycle Assessmentno. 6 (LCA) AuthorsAllan Astrup JensenLeif HoffmanBirgitte T. M llerAnders Schmidtdk-TEKNIK Energy &Environment,DenmarkKim ChristiansenSophus Berendsen A/SDenmarkJohn ElkingtonFranceska van DijkSustainAbility ,United KingdomAugust 1997 Cover and layout:Folkmann Design &PromotionNoteThe designationsemployed and thepresentation of materialin this publication do notimply the expression ofany opinion whatsoeveron the part of theEuropean Commission orthe EuropeanEnvironment Agencyconcerning the legalstatus of any country orterritory, and theboundaries shown onmaps do not implyofficial endorsement Assessment (LCA)

2 A guide to approaches, experiences and information sourcesThere are great expectations for the European level, the Parliament has suggested that the Commission develop a frame-work for an integrated life - Cycle -oriented product policy. In the work for the next frameworkresearch programme, LCA also has a prominent role in promoting competitive and sustain-able design and production of new products and materials should be based on a life -cycleassessment concept. LCA is also a necessary basis for eco-labelling requested by consumers,NGOs and international and national authorities.

3 Business and industry sectors are aware ofthe requests from customers, and recognise the possibilities for LCA in saving natural re-sources and energy and in minimising pollution and waste. LCA is not only a tool to improvethe environment, but also an instrument for industry implying cost-savings and addition, the interest in developing environmental management systems and tools as abasis for decision making is expressed in the work with Agenda 21 and ISO 14 European Environment Agency (EEA) has the mandate to provide the Community andthe Member States with objective, reliable and comparable information at the Europeanlevel.

4 Among its goals, the EEA shall provide information for environmental policy develop-ment and implementation and ensure broad dissemination and accessibility. Importantprinciples in this context are pooling existing information and know-how and facilitatingdata main advantage of LCAs is in supporting decision making with scientific data andcompetence, and thereby in distinguishing between scientific facts (as far as possible) andsets of values. In this context, its ambition is very close to the mandate of the balancing science and simplicity, LCA implies that there can be many limitations thatshould be addressed in LCA studies and development work, for example: the type of information provided, especially by life - Cycle impact Assessment , is merely anindicator; LCA should not be misunderstood as a comprehensive or a complete Assessment ; LCA is different and distinct in approach from other management tools.

5 LCA uses subjective judgement extensively, and the lack of scientific or technical data issometimes is also a challenge to take the step from LCA as a communication tool to an operationaltool in environmental management. LCA-based environmental management should becomepart of good business management heading towards the eco-efficiency concept producingmore quality with less resources .LCA should be used together with other established techniques, such as environmentalimpact Assessment and environmental risk Assessment .

6 These approaches complement eachother, but are not interchangeable and cannot be substituted for each this publication the Agency hopes to guide the readers through this informationand provide links to external sources. The Internet version and the supplementary data-base have been developed as complementing products to give greater access to the production has involved many contributors other than the authors. The report hasbeen reviewed by the Scientific Committee of the EEA and the National Focal Points, forwhich EEA is grateful.

7 The Society for Promotion of life Cycle Development (SPOLD) hascontributed to the project with advice and constructive criticism. A critical review of the draftpublication was made by Dr Dennis Postlethwaite, UK, past-Chairman of the SETAC-EuropeLCA Steering Committee and member of the UK Delegation to ISO/TC207/SC5 on LifeCycle EEA hopes that this publication together with the prepared meta-database containinginformation sources will prove valuable to its readers. We have tried to target different partsof the publication to different users.

8 It is our intention to continue our efforts to make thesetools Jim nez-Beltr nExecutive DirectorEuropean Environment AgencyABOUT THIS GUIDE TO BRIEF HISTORY OF Early Years .. Growth and Adolescence .. Maturity .. Views .. 14 Appendix : A Spectrum of Stakeholder Views .. ROLE FOR LCA INSUSTAINABLE DEVELOPMENT?.. Cycle Thinking and Sustainability .. Ground-Rules for a Credible LCA .. Dialogue .. Verification .. Benchmarking .. From Management Systems to Strategy .. Impacts and Outcomes.

9 Standards .. Corporate Governance .. Will LCA become Mandatory? .. Setting LCA Boundaries .. The Triple Bottom Line .. Next Five Years .. OF of sophistication in LCA for different applications .. Conceptual LCA - life Cycle Thinking .. Simplified LCA .. sector applications .. Product development .. Marketing .. Strategic planning .. Conceptually related programmes .. policy making .. Environmental labelling .. Green procurement .. Other governmental applications.

10 Applications .. 46 Appendix : Environmental labelling .. introduction .. Definitions .. and scope definition .. Goal .. Scope .. Functional unit .. System boundaries .. Data quality .. Critical review process .. analysis .. Data collection .. Refining system boundaries .. Calculation procedures .. Validation of data .. Relating data .. Allocation and recycling .. Assessment .. Category definition .. Classification .. Characterisation .. Valuation/Weighting.