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Life Cycle Assessment of ICT: Carbon Footprint and Operational Electricity Use from the Operator, National, and Subscriber Perspective in Sweden
KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC. Ericsson Research, Stockholm, Sweden .
KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC. TeliaSonera, Stockholm, Sweden .
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Environmental Strategies Research (fms). KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC.
KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC. TeliaSonera, Stockholm, Sweden .
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2014 (English)In: Journal of Industrial Ecology, ISSN 1088-1980, E-ISSN 1530-9290, Vol. 18, no 6, 829-845 p.Article in journal (Refereed) Published
Abstract [en]

The use of information and communication technology (ICT) is growing throughout society, and new products and solutions are developed at an increasing rate. To enable environmental assessment of specific ICT products and other products that rely on ICT in some way, a more complete, detailed, and up-to-date study based on real measurements is needed. To date, similar studies have not been readily available or fully comprehensive. This study assessed the overall operational electricity use and life-cycle-based carbon footprint (CF) relating to ICT in Sweden, including activities not commonly addressed previously, such as shared data transport networks and data centers and manufacturing of network infrastructure. Specific, detailed inventory data are presented and used for assessment of the Internet Protocol core network, data transmission, operator activities, and access network. These specific data, in combination with secondary, more generic data for end-user equipment, allow a comprehensive overall assessment. The majority of the ICT network CF is the result of end-user equipment, mainly personal computers, followed by third-party enterprise networks and data centers and then access networks. The parts closest to the user proved to be clearly responsible for the majority of the impact. The results are presented for Swedish ICT networks and for ICT networks in general based on a global average electricity mix.

Place, publisher, year, edition, pages
2014. Vol. 18, no 6, 829-845 p.
Keyword [en]
carbon emissions, industrial ecology, information and communications technology (ICT), Internet, life cycle assessment (LCA), telecommunications
National Category
Other Environmental Engineering Communication Systems Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-145429DOI: 10.1111/jiec.12145ISI: 000346268500007ScopusID: 2-s2.0-84916942381OAI: oai:DiVA.org:kth-145429DiVA: diva2:718340
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VINNOVA
Note

QC 20150213. Updated from e-pub ahead of print to published.

Available from: 2014-05-20 Created: 2014-05-20 Last updated: 2016-11-30Bibliographically approved

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Malmodin, JensLundén, DagMoberg, ÅsaAndersson, GregerNilsson, Mikael
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