Multifunctional electronic media-traditional media
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Aim and Background
Electronic media are spreading rapidly and some of the services they offer are similar to traditional media. Frequently, credit is given to electronic media for causing less environmental impact, however, looking at it more closely, little is known about the comparability of the environmental impact of both kinds of media. Main reasons for this lack of knowledge are difficulties in defining an adequate functional unit for a comparison of usually multifunctional media, as well as problems in gathering large amounts of inventory data for complex electronic goods.
Here an LCA case study was conducted for reading or watching the daily news in an online and a printed newspaper as well as on TV. Aim of this study was to find an adequate functional unit as well as to quantify the environmental impact of each of the media, including recommendations for the reduction of their impact.
In order to account for the multifunctionality of the investigated media as well as for ISO 14040ff. guidelines for the definition of the functional unit, several functional units were chosen. The selected functional units cover a spectrum of close functional equivalence to an altogether different approach in comparing entire activities.
Compared on the basis of an average news item, the internet newspaper causes far more environmental impact than a TV news cast, which, in turn, causes more impact than a cutting of a newspaper. Major contributions to the high environmental impact of the internet newspaper are the manufacturing of the computer as well as operation of the necessary infrastructure for running the internet, in particular operation of the telephone network.
No online information is printed.
Internet surfing is directed towards specific goals and therefore limited in time.
Power consumption is based to a large extent on renewable energy sources. This still holds true for the underlying national electricity mix of Switzerland with a high share of hydropower.
A comparison of the average per capita time of watching TV with surfing in the internet and average paper consumption of free and bought print products also shows that most of the environmental impact results from print products.
Summarising the previously shown results, different perspectives on media and, with it, different functional units lead-not surprisingly-to different results. Relations between the environmental impact of the three media change between approaches. A final conclusion on a qualitative level is drawn.
The first functional unit stands for close functional equivalence, however, itdoes not resemble options of the consumer in real life. The cuttings of a newspaper cannot be bought as such and the consumer is normally not interested in a single news item. The second functional unit is more of a representation of real life choices and is a typical example of a consumer’s choice that frequently has to decide between options which are not exactly functionally equivalent. Finally, the last approach, based on entire activities, supports the result of the previous approach.
The case study has shown that a comparison of multifunctional products or services excludes relevant environmental aspects, if functional equivalence is chosen as the unique reference unit. Thus, it is recommended to apply several approaches in order to do justice to the multifunctionality of the investigated products or services. ISO/TR 14049, with its concept of user acceptance, offers such a possibility to compare products or services which are still considered equivalent by the user.
KeywordsDaily news functional equivalence functional unit internet newspaper multifunctional electronic media newspaper television traditional media
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- AG für Werbemedienforschung (2000): MA Comis 2000, online report from: www.wemf.ch/de/produkte/comis.htmlGoogle Scholar
- AG für Werbemedienforschung (2001): Report Special 10. MA Comis, ondine report from: www.wemf.ch/pdf/d/Comis01%20 Special.pdfGoogle Scholar
- AG für Werbemedienforschung (2002): MA NET, online report from: www.wemf.ch/d/studien/manet.shtmlGoogle Scholar
- Behrendt S, Kreibich R, Lundie S, Pfitzner R, Scharp M (1998): Ökobilanzierung komplexer Elektronikprodukte. Springer, BerlinGoogle Scholar
- Brand G, Braunschweig A, Scheidegger A, Schwank O (1998): Bewertung in Ökobilanzen mit der Methode der ökologischen Knappheit-Ökofaktoren 1997. Schriftenreihe Umwelt Nr. 297. Bundesamt für Umwelt, Wald und Landschaft (BUWAL), BernGoogle Scholar
- Bundesamt für Statistik (1990): Personal communications with BFS about household inhabitants and age groups based on the census in Switzerland in the year 1990.Google Scholar
- Dreier T, Wagner U (2000): Life Cycle Analysis of a Personal Computer and Peripheral Equipment. International Conference Electronic goes Green 2000+, VDE, BerlinGoogle Scholar
- Goedkoep M, Spriensma R (2000): Eco-indicator 99. A damage orientated method for Life Cycle Impact Assessment. Methodology Report. PRé Consultants B. V., AmersfoortGoogle Scholar
- International Organization for Standardization (1997): ISO 14040: Environmental Management-Life Cycle Assessment-Principles and Framework. GenevaGoogle Scholar
- International Organization for Standardization (1998): ISO 14041: Environmental management-Life cycle assessment-Goal and scope definition and inventory analysis. GenevaGoogle Scholar
- International Organization for Standardization (2000): ISO/TR 14049: Environmental management-Life cycle assessment-Examples of application of ISO 14041 to goal and scope definition and inventory analysis. GenevaGoogle Scholar
- Jedele M (1999): Personal communication on measurements of tv user behaviour (telecontrol). SRG, ZürichGoogle Scholar
- Johnson E (1998): LCA Study of the Product Group Personal Computers in the EU Ecolabel Scheme, March 1998. Atlantic Consulting and IPU, LondonGoogle Scholar
- Laitner JA (2000): The Information and Communication Technology Revolution: Can It Be Good for Both the Economy and the Climate? EPA, Office of Atmospheric Programs, Washington DCGoogle Scholar
- Oiva L, Oppermann W, Middendorf A, Zuber H, Stobbe I (2000): Case study on the environmental impacts of a mobile phone. International Conference Electronic goes Green 2000+, VDE, BerlinGoogle Scholar
- Plätzer ET (1998): Papier versus Neue Medien: Eine Analyse der Umweltverträglichkeit von Presseinformationen im Licht des technologischen Wandels. Dissertation, Fachbereich Rechts-und Wirtschaftswissenschaften. Technische Universität, DarmstadtGoogle Scholar
- Romm J (1999): The internet economy and global warming. The Center for Energy and Climate Solutions, Annandale, VIGoogle Scholar
- Rydberg T, Östermark U, Eriksson E (2001): Life Cycle Assessment of a Videoconference-A comparative study of different ways of communication. 13th Discussion Forum of Life Cycle Assessment. Environmental Impact of Telecommunication Systems and Services, EPFL, LausanneGoogle Scholar
- Soldera M (1995): Öko-Computer. LIS, Vaduz/ChurGoogle Scholar
- Schweizerische Radio und Fernsehgesellschaft (2000): Presse-unterlagen des Mediengesprächs des SRG SSR Forschungs-dienstes und der Publica Data AG vom 4. April 2000. BernGoogle Scholar
- Strubel V, Gensch CO, Buchert M, Bunke D, Ebinger F, Heber E, Hochfeld C, Griesshammer R, Quack D, Reichart I, Viereck HG (1999): Verbundvorhaben: Beiträge zur Entwicklung einer Kreislaufwirtschaft am Beispiel des komplexen Massenkon-sumproduktes TV-Gerät. Teilvorhaben 1: Ökologische und ökonomische Begleitforschung. Im Auftrag des Bundesministerium für Bildung und Forschung (BMBF). Oko-Institut, Freiburg/DarmstadtGoogle Scholar
- Udo de Haes H (1996): LCA: approaches and bottlenecks when applied to agriculture, food and forestry. International Conference on Application of Life Cycle Assessment in Agriculture, Food and Non-Food Agro-Industry and Forestry: Achievements and Prospects. Vlaamse Instelling voor Technologisch Onder-zoek, BrusselsGoogle Scholar
- Verband der Schweizerischen Zellstoff-, Papier-und Kartonindustrie (2000): Personal communications of ZPK about Swiss paper consumption in 1999 differentiated according to different paper types, ZürichGoogle Scholar
- Wegener Sleeswijk A, Kleijn R, van Zeijts H, Reus JA, Meussenvan Onna MJ, Leneman H, Sengers HH (1996): Application of LCA to agricultural products: 1. Core methodological issues; 2. Supplement to the ‘LCA Guide’; 3. Methodological background. Centre of environmental Science Leiden University (CML), Centre of Agriculture and Environment (CLM), Agricultural-Economic Institute (LEI-DLO), LeidenGoogle Scholar
- Zurkirch M, Reichart I (2001): Environmental Impacts of Telecommunication Services. Two Life-Cycle Analysis Studies. Greener Management Journal (32) 70–88Google Scholar