| Time | Title | Speaker | Affiliation |
|---|---|---|---|
| 8:45 | Registration, coffee & croissants | ||
| 9:10 | Welcome and introduction to the day DF72-00_Meili.pdf | Christoph Meili | ESU-services |
| Method | [Chair: Christoph Meili] | ||
| 9:15 | Normalization and weighting of sustainability indicators: current status and main challenges DF72-01_Roesch.pdf | Andreas Roesch | Agroscope |
| 9:45 | Normalization and weighting in ISO standards DF72-02_Buxmann.pdf | Kurt Buxmann | SNV NK 174 |
| 10:15 | Discussion | ||
| 10:20 | Coffee break | ||
| Research | [Chair: Andreas Roesch] | ||
| 10:50 | Normalisation and weighting as applied in Product Environmental Footprint DF72-03_Sala.pdf | Serenella Sala | EC JRC |
| 11:20 | The influence of normalization and weighting on results by different possibilities given in the ISO Standard DF72-04_Jungbluth.pdf | Niels Jungbluth | ESU-services |
| 11:50 | Discussion | ||
| Short Presentations | [Chair: Andreas Roesch] | ||
| 12:00 | Does the approach on weighting in the Swiss ecological scarcity method allow a consistent evaluation? Discuss Grouping as an influencing factor DF72-05_Meili.pdf | Christoph Meili, Niels Jungbluth | ESU-services |
| 12:10 | Comparison of Swiss and European eco-factors DF72-06_Braunschweig.pdf | Arthur Braunschweig | E2 Management |
| 12:20 | External normalization of LC(S)A resukts for outranking methods in MCDA DF72-07_Wulf.pdf | Christina Wulf | Jülich Forschungszentrum |
| 12:30 | Questions to all 3 short presentations | ||
| 12:40 | Lunch | ||
| 13:40 | Development of normalization and weighting factors for G20 countries DF72-08_Itsubo.pdf | Norihiro Itsubo (on video) | Tokyo City University |
| 14:10 | Weighting in multi-criteria sustainability assessments: quantifying the uncertainty of expert judgements in the SMART Farm Tool DF72-09_Curran.pdf | Michael Curran | FiBL |
| 14:40 | Consistent normalization approach for Life Cycle Assessment based on a study-specific reference system DF72-10_Helias.pdf | Arnaud Hélias | TU Berlin/Irstea |
| 15:10 | Discussion | ||
| 15:20 | Coffee break | ||
| Politics | [Chair: Niels Jungbluth] | ||
| 15:40 | Are single score indicators preferable? The use of weighting in the Italian policy initiative «Made Green in Italy». DF72-11_Zamagni.pdf | Alessandra Zamagni | ecoinnovazione |
| 16:10 | Relevance of a single score approach and planetary boundaries from the Swiss policy perspective DF72-12_Kaenzig.pdf | Josef Känzig | FOEN (BAFU) |
| 16:40 | Discussion | ||
| Wrap-up, announcements and farewell | [Chair: Niels Jungbluth] | ||
| 16:50 | Announcement next DF 73 | Roland Hischier | EMPA |
| 16:55 | Announcement Special DF 75 | Rolf Frischknecht | treeze |
| 17:00 | Wrap up and announcements DF72-13_Jungbluth.pdf | Niels Jungbluth | ESU-services |
| 17:05 | Farewell |
DF 72 – Normalization and weighting. The forgotten theme in LCA
Discussion forum on Life Cycle Assessment
Monday, 9 September 2019, ETH Zürich, Alumni (GEP) Pavillon
To draw the right conclusions based on environmental indicators can be a challenging task due to the consideration of a broad variety of environmental impacts that show diverging results. Many LCA practitioners seek help in interpreting diverging results in different impact categories by applying single score LCIA methods. But the ISO standards do not support weighting for publishing comparative LCA. Nevertheless, the increasing need for unequivocal results lead to the development of single score impact assessment method.This DF focuses on the present state of normalization and weighting in LCA. The statements in ISO 14040 are taken as one of the baselines, e.g. concerning internal and external normalization and hints on interpretation. The ongoing developments for the technical specification on this theme (ISO/TS 14074) are covered. Approaches broadening this view in ISO will be presented as well.An overview on present schemes such as the ILCD recommendations for LCIA and further developments within the EU Product Environmental Footprint (PEF) initiative will be provided. Another key question will be: How useful is the concept of the carrying capacity or the planetary boundaries for aggregating indicator scores?A discussion of different weighting methods should shed more light on the uncertainties and differences of various approaches (e.g. transparency, completeness, applicability). The forum should launch further discussion about these issues to initiate also a revision of standards like ISO 14040/44/74 to better reflect the current state of the art.In summary, the DF aims at a critical discussion and review of currently available methods for normalization and weighting to promote a better understanding of the complex topic and controversialdebate in the scientific community. How ISO standards on weighting, normalization and grouping can be implemented in the future are identified. Research needs are formulated to foster progress in this field of LCA application.This forum aims to provide a fertile ground for discussion between LCA researchers, practitioners and other people interested in the interpretation and development of normalization and weighting methods.
Download: DF72-Programme_Normalization and weighting.pdf
Livestream / Videorecordings: Access to the livestreamlng will be available at the day of the event (payment required, see section "Registration" above).
Videos will be available for free after DF 72 (estimated from September 16, 2019) via this link: https://video.ethz.ch/events/lca/2019/autumn/72nd.html