Streaming media is calculated to contribute a surprising 1% of global greenhouse gases, because most regions of the world obtain electricity from fossil fuels to power their data centers, networks, and devices. Streaming large files in large quantities, then, ethically implicates spectators in the warming of the planet. Bad news — but we have some solutions!
Our research addresses the high and rising electricity consumption of information and communication technologies (ICT), which consume as much as 7% of global electricity (Andrae 2020). Given that globally about 79% of electricity comes from fossil fuels, this means that ICT is responsible for 3.3% to 3.8% of global greenhouse gases (Belkhir and Elmeligi 2018, Cisco 2020b, Bordage 2019).
Streaming media – video on demand (e.g. Netflix, Crave), porn, YouTube, games, video conferencing, etc. – contributes more than any other sector to this increase (Cisco 2020). People are streaming video at higher volumes and higher definition, and media and telecom corporations cheerfully encourage us to do so. The Covid-19 pandemic is accelerating this crisis, as people are stuck at home and seeking entertainment and relief. Meanwhile, what we might call “streaming impact denial” plays into the notion that online media are “virtual” and do not impact the environment.
Unchecked, the carbon emissions resulting from ICT could exceed 14% of the 2016-level worldwide GHGE by 2040 (Belkhir & Elmeligi 2018, The Shift Project 2019). It is urgent to immediately reduce that figure, and the rising share of streaming media, through education and policy changes.
Our research project, supported by the Social Sciences and Humanities Research Council of Canada Knowledge Synthesis grant program, “Living within the Earth’s Carrying Capacity," is complete. Please download the evidence brief and the full report. It's a gripping mystery story set in the labyrinthine world of ICT engineering! Includes recommendations for consumers, telecoms, governments, and more.
Laura U. Marks, SFU School for the Contemporary Arts
Radek Przedpełski, postdoctoral fellow, SFU School for the Contemporary Arts
Alejandro Rodriguez-Silva, PhD student, SFU School of Engineering Science
- Critically assess engineering research on the environmental impact of ICT and streaming media, identify the most reliable results, and develop streaming media energy usage and carbon footprint calculator
- Measure the electricity consumption involved in streaming media through case studies in British Columbia, and produce tools to accurately calculate its carbon footprint
- Inform policymakers of the most promising policies and practices at governmental, institutional, and individual levels
- Adhere to an open, reproducible science philosophy
- Advocate alternatives to HD streaming, on fronts including carbon taxes for streaming services; simple alternatives like watching television and borrowing DVDs; and low-bandwidth streaming media
- Teach media makers how to make small-file videos, with technical and aesthetic tips
- Share the beauties of appropriate technology through the Small File Media Festival
The First Annual Small File Media Festival (August 10-20, 2020), featuring movies under 5 megabytes each, showed that great cinema doesn’t have to mean great big files! We received over 100 submissions from around the world, with ingenious creative solutions including animation, GIFs, low frame rates, datamoshing, executable files, “obsolete” technologies, and creative compression. More info at smallfile.ca
The Small File Media Festival team is:
- Laura U. Marks, founder
- Sophia Biedka, festival organizer, independent filmmaker
- Joey Malbon, festival organizer, media activist
- Radek Przedpełski, postdoctoral fellow, School for the Contemporary Arts
- Faune Ybarra, visual artist
- Sanjana Karthik, activist and high-school student
Azadeh Emadi, Entangled Orb (Glasgow, 2020, 5:07, 4.8 MB, 8:00 processing time)
We've prepared a collection of downloadable Best Practices PDFs for helping to manage your online carbon footprint.
This year, PhD student Yani Kong, with Marks, is working with SFU's IT department to analyze the carbon footprint of online teaching. Check back here for updates about this project!
Laura U. Marks and Radek Przedpełski, “Bandwidth Imperialism and Small-File Media,” in Post-45, special issue on “New Filmic Geographies” ed. Suzanne Enzerink (2020)
Laura U. Marks, Joseph Clark, Jason Livingston, Denise Oleksijczuk, and Lucas Hilderbrand, “Streaming Media’s Environmental Impact,” Media + Environment.
Laura U. Marks, “Small-File Movies: Saving the planet, one pixel at a time.” Millennium Film Journal 71/72 (December 2020).
Laura U. Marks and Stephen Makonin, “Streaming video is overheating the planet.” Op-ed, The Vancouver Sun. August 15, 2020.
Yani Kong, “Tiny movies at the end of the world,” SFU School for the Contemporary Arts.
Radek Przedpełski, “The environmental cost of binge-watching,” Science Gallery, Dublin.
Laura U. Marks, “Let’s Deal with the Carbon Footprint of Streaming Media,” Afterimage 47:2 (2020): 46-52.
Laura U. Marks, “Streaming video, a surprising link between pandemic and climate crisis,” Journal of Visual Culture and Harun Farocki Institut special issue on Covid-19 (April 2020)
Our research is partially funded by the Social Sciences and Humanities Research Council’s program Living within the Earth's Carrying Capacity
Advanced Micro Devices. 2006. "Power and Cooling in the Data Center." Santa Clara, CA, 34246C.
Andrae, A. 2019. “Projecting the chiaroscuro of the electricity use of communication and computing from 2018 to 2030.” Preprint.
Andrae, A. 2020. “New perspectives on internet electricity use in 2030.” Engineering and Applied Science Letters 3:2. 19-31.
Andrae, A., and Peter M. Corcoran. 2013. "Emerging Trends in Electricity Consumption for Consumer ICT." http://hdl.handle.net/10379/3563.
Andrae, A, and T. Edler. 2015. "On Global Electricity Usage of Communication Technology: Trends to 2030." Challenges 6, 117-157.
Antal, M., Mattioli, G., and I. Rattle. 2019. "Let's Focus More on Negative Trends: A Comment on the Transitions Research Agenda." Environmental Innovation and Societal Transitions 34, 359-362.
Aslan, J., K. Mayers, J. Koomey, and C. France. 2017. "Electricity Intensity of Internet Data Transmission: Untangling the Estimates." Journal of Industrial Ecology 22(4), 785-798.
Baliga, J., Ayre, R., Hinton, K., Sorin, W. V., and R. S. Tucker. 2009. "Energy Consumption in Optical IP Networks." Journal of Lightwave Technology 27(13), 2391-2403.
Belkhir, L., and A. Elmeligi. 2018. "Assessing ICT Global Emissions Footprint: Trends to 2040 and Recommendations." Journal of Cleaner Production 177, 448-463.
Blandine, A., G. Pieters, Y. Wu, T. Eisermann, A. Dek, S. Taylor, and D. Njoki. “3rd Global Cryptoasset Benchmarking Study.” Cambridge, UK: Cambridge Centre for Alternative Finance. Report.
Bohr, M. 2007. ‘‘A 30 Year Retrospective on Den- nard’s MOSFET Scaling Paper.’’ IEEE Solid-State Circuits Newsletter, 12: 1, 11–13.
Bordage, F. 2019. “The environmental footprint of the digital world.” Report for GreenIT.fr.
Borggren, C., Å. Moberg, M. Räsänen, and G. Finnveden. 2013. “Business meetings at a distance—decreasing greenhouse gas emissions and cumulative energy demand?” Journal of Cleaner Production 41: 126-139.
Brill, K. G. 2007. "Data Center Energy Efficiency and Productivity." Presented at the Uptime Institute Symposium, Orlando, FL.
Brown, R., E. Masanet, B. Nordman, W. Tschudi, A. Shehabi, J. Stanley, J. Koomey, D. Sartor, P. Chan, J. Loper, S. Capana, B. Hedman, R. Duff, E. Haines, D. Sass, and A. Fanara. 2007. "Report to Congress on Server and Data Center Energy Efficiency." Public law 109-431, Lawrence Berkeley Nat. Lab., , CA, LBNL-363E.
Bundesnetzagentur. 2019. "Monitoringbericht 2018." Bonn.
Cevenini, E. 2019. “Setting Realistic Goals for Powering Data Centers With Renewable Energy: Why 20-percent-renewable by 2025 is achievable, and how we can get there.” https://www.datacenterknowledge.com/industry-perspectives/setting-realistic-goals-powering-data-centers-renewable-energy
Chan, E.A., A.F. Gygax, C. Leckie, E. Wong, A. Nirmalathas, K. Hinton. 2016. “Telecommunications energy and greenhouse gas emissions management for future network growth.” Applied Energy 166: 174-185.
Cisco. 2018. "Cisco Global Cloud Index, Forecast and Methodology." Whitepaper. Cisco.
Cisco. 2018b. "Cisco Global Cloud Index: Forecast and Methodology 2016-2021." Whitepaper.
Cisco. 2019. "Cisco Visual Networking Index: Forecast and Trends 2017–2022." Whitepaper.
Cisco. 2019. "Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2017–2022." Technical report.
Coroama, V. C., Hilty, L. M., Heiri, E., and F. M. Horn. 2013. "The Direct Energy Demand of Internet Data Flows." Journal of Industrial Ecology 17(5), 680-688.
Coroama, V., and L. Hilty. 2014. "Assessing Internet Energy Intensity: A Review of Methods and Results." Environmental Impact Assessment Review 45, 63-68.
Costenaro, D., and A. Duer. 2012. "The Megawatts behind Your Megabytes: Going from Data Center to Desktop." Proceedings of the 2012 ACEEE Summer Study on Energy Efficiency in Buildings, ACEEE, Washington, 13.65- 13.76.
Cubitt, S. 2017. Finite Media: Environmental Implications of Digital Technologies. Durham, NC: Duke University Press.
Cullen, Cam. 2018. “Global Internet Phenomena Preview: Peloton Connected Fitness.” Sandvine, September 27. https://www.sandvine.com/blog/global-internet-phenomena-preview-peloton-connected-fitness.
Dean, J., Patterson D., and C. Young. 2018. “A New Golden Age in Computer Architecture: Empowering the Machine Learning Revolution.” IEEE Micro 38, 21–9.
DeDecker, K. (2018) ‘Bedazzled by Energy Efficiency,’ Low-Tech Magazine (January). https://solar.lowtechmagazine.com/2018/01/bedazzled-by-energy-efficiency.html
Efoui-Hess, M., and J.-N. Geist. 2020. "Did the Shift Project Really Overestimate the Carbon Footprint of Online Video?" The Shift Project. Web publication.
Fairley, P.. 2018. “Ethereum will cut back its absurd energy use.” IEEE Spectrum (January): 29-32.
Fehske, A., Fettweis, G., Malmodin, J., and G. Biczok. 2011. "The Global Footprint of Mobile Communications: The Ecological and Economic Perspective." IEEE Communication Magazine 49(8).
Freeman, R., Yearworth, M., & Preist, C. (2016). Revisiting Jevons’ Paradox with System Dynamics: Systemic Causes and Potential Cures. Journal of Industrial Ecology 20:2: 341-353.
Gelenbe, E., and Y. Caseau. 2015. "The Impact of Information Technology on Energy Consumption and Carbon Emissions." Ubiquity. Association for Computing Machinery. June 2015, 1-15.
GeSI (Global e-Sustainability Initiative) and Accenture. 2015. “#SMARTer2030: ICT Solutions for 21st Century Challenges.” White paper. (http://smarter2030.gesi.org/downloads/Full_ report2.pdf)
GeSI (Global e-Sustainability Initiative) and Carbon Trust. 2017. "Chapter 2: Guide for Assessing GHG Emissions of Telecommunications Network Services." In: ICT Sector Guidance Built on the GHG Protocol Product Life Cycle Accounting and Reporting Standard. White paper. 2-1-2-54.
Gossart, C. 2015. “Rebound Effects and ICT: A Review of the Literature,” in Hilty and Aebischer, eds., 435-448.
Gupta, M., and S. Singh. 2003. "Greening of the Internet." In: Proceeding of ACM SIGCOMM.
Hilty, L., and B. Aebischer. eds. 2015. ICT Innovations for Sustainability. Springer.
Hintemann, R. 2018. "Efficiency gains are not enough: Data center energy consumption continues to rise significantly.” Borderstep Institute for Innovation and Sustainability. White paper.
Hintemann, R. 2020. "Rechenzentren 2018. Effizienzgewinne reichen nicht aus: Energiebedarf der Rechenzentren steigt weiter deutlich an." Berlin: Borderstep Institute for Innovation and Sustainability.
Hintemann, R., and S. Hinterholzer. 2019. "Energy Consumption of Data Centers Worldwide: How Will the Internet Become Green?" Proceedings of ICT4S 2019.
Hinterholzer, S., and R. Hintemann. 2020. "Videostreaming: Energy Requirements and CO2 Emissions Background Paper: The Most Important Points in a Nutshell." Trans. Stephan Meinke. BorderStep Institute for Innovation and Sustainability. Background paper.
Hischier, R., V.C. Coroama, D. Schein, and M.A> Achachlouei. 2015. “Grey energy and environmental impacts of ICT hardware.” In Hilty and Aebischer, eds. 171-190.
Horner, N., A. Shehabi, and I. Azevedo. 2016. “Known unknowns: indirect energy effects of information and communication technology.” Environ. Res. Lett. 11.
Horner, N., and I. Azevedo. 2016. ”Power usage effectiveness in data centers: Overloaded and underachieving.” The Electricity Journal 29: 61–69.
Hu, T-h. (2017) ‘Black Boxes and Green Lights: Media, Infrastructure, and the Future At Any Cost,’ English Language Notes 55:1-2 (Spring/Fall): 81-88.
International Energy Agency. 2013. “Energy Efficiency Market Report.” Paris: OECD/IEA.
International Energy Agency. 2017. "Digitalization and Energy." Technical report.
Jones, Nicola. 2018. “How to Stop Data Centres from Gobbling Up the World’s Electricity. The Energy-Efficiency Drive at the Information Factories That Serve Us Facebook, Google and Bitcoin.” Nature. 13 September 2018. https://www.nature.com/articles/d41586-018-06610-y.
Kaeslin. H. 2015. "Semiconductor Technology and the Energy Efficiency of ICT." In Hilty and Aebischer, eds. 105-112.
Kamiya, G. 2020a. "Data Centres and Data Transmission Networks: On track." International Energy Agency white paper. https://www.iea.org/reports/data-centres-and-data-transmission-networks.
Kamiya, G. 2020b. "Factcheck: What is the Carbon Footprint of Streaming Video on Netflix?" CarbonBrief. Web publication.
Karamshuk, D., N. Sastry, A.Secker, and J Chandaria. 2015. “ISP-friendly Peer-assisted On-demand Streaming of Long Duration Content in BBC iPlayer.” In Proceedings of INFOCOM 2015, 289- 297.
Klein, N. 2020. “Naomi Klein: How big tech plans to profit from the pandemic.” The Guardian. May 13.
Koomey, J. 2011. "Growth in Data Center Electricity Use 2005 to 2010." http://www.analyticspress.com/datacenters.html. Oakland, CA: Analytics Press.
Koomey, J. 2007a. "Estimating Total Power Consumption by Servers in the U.S. and the World." Oakland, CA: Analytics Press.
Koomey, J. 2007b. "Estimating Regional Power Consumption by Servers: A Technical Note." Oakland, CA: Analytics Press.
Koomey, J. 2008. "Worldwide Electricity Used in Data Centers." Environ. Res. Lett. 3, 034008, July–September.
Koomey, J., and S. Naffziger. 2015. "Moore’s Law Might Be Slowing Down, But Not Energy Efficiency." IEEE Spectrum. 31 March 2015. 3 pages.
Koomey, J., and J. Taylor. 2015. “New Data Supports Finding that 30 Percent of Servers Are ‘Comatose’, Indicating that Nearly a Third of Capital in Enterprise Data Centers Is Wasted.” TSO Logic.
Koomey, J., Chong, H., Loh, W., Nordman, B., and M. Blazek. 2004. "Network Electricity Use Associated with Wireless Personal Digital Assistants." Journal of Infrastructure Systems 10:3, 131-137.
Laitner, J.A.S. 2015. “The Energy Efficiency Benefits and the Economic Imperative of ICT-Enabled Systems.” In Hilty and Aebischer, eds.
Lange, S., Pohl, J., and T. Santarius. 2020. "Digitalization and Energy Consumption. Does ICT Reduce Energy Demand?" Ecological Economics 176. 14 pages.
Lanzisera, S., Nordman, B., and R. E. Brown. 2012. "Data Network Equipment Energy Use and Savings Potential in Buildings." Energy Efficiency 5(2), 149-162.
Leidig, M. and R.M. Teeuw. 2015. “Quantifying and Mapping Global Data Poverty,” PLoS One 10(11): e0142076. November 11.
Loper., J., and S. Parr. 2007. “Energy Efficiency in Data Centers: A New Policy Frontier.” Washington, DC: Alliance to Save Energy.
Malmodin, J., and D. Lundén. 2018. "The Energy and Carbon Footprint of the Global ICT and E&M Sectors 2010–2015." Sustainability 10(3027). 31 pages.
Marks, L. U. 2020. ‘Streaming Video, a Surprising Link between Pandemic and Climate Crisis,’ Journal of Visual Culture and Harun Farocki Institut Special Issue on Covid-19. https://www.harun-farocki-institut.org/en/2020/04/16/streaming-video-a-link-between-pandemic-and-climate-crisis-journal-of-visual-culture-hafi-2/
Marks, L.U., Clark, J., Livingston, J., Oleksijczuk, D., and Hilderbrand, L. (2020) ‘Streaming Media’s Environmental Impact,’ Media + Environment. https://mediaenviron.org/article/17242-streaming-media-s-environmental-impact
Mahlooji, M., L. Gaudard, B. Ristic, and K. Madani. 2020. “The importance of considering resource availability restrictions in energy planning: What is the footprint of electricity generation in the Middle East and North Africa (MENA)?” Science of the Total Environment 717. 16 pages.
Masanet, E., Shehabi, A., Lei, N., Smith, S., and J. Koomey. 2020. "Recalibrating Global Data Center Energy-use Estimates." Science 367(6581), 984-986.
Mills, Bourassa, Rainer, Mai, & Shehabi. 2019. “Toward Greener Gaming: Estimating National Energy Use and Energy Efficiency Potential.” The Computer Games Journal 8. Springer, 157–178.
Moore, G. 1965. "Cramming More Components onto Integrated Circuits." Electronics 38(8). 4 pages.
Morley, J., Widdicks, K., and M. Hazas. 2018. “Digitalisation, Energy and Data Demand: The Impact of Internet Traffic on Overall and Peak Electricity Consumption.” Energy Research & Social Science 38, 128-137.
Moro, C., R.L. Rollins, K. Taladay, M.B. Kantar, M.K. Chock, M. Shimada, and E.C. Franklin. 2018. “Bitcoin emissions alone could push global warming above 2°C.” Nature Climate Change 8: 924-936.
Nair, A., Auerbach, G., and S. Skleros. 2019. "Environmental Impacts of Shifting from Movie Disc Media to Movie Streaming: Case Study and Sensitivity Analysis." Procedia CIRP 80, 393–398.
Nardi, B., et al. (2018) “Computing Within Limits.” Communications of the ACM, 61:10 (October): 86-93.
Netflix. 2019. "Environmental Social Governance: 2019 Sustainability Accounting Standards Board (SASB) Report." White paper.
Obringer, R., B. Rachunok, D. Maia-Silva, M. Arbabzadeh, R. Nateghi, K. Madani. 2021. “The overlooked environmental footprint of increasing Internet use.” Resources, Conservation & Recycling 167. 4 pages.
O’Connor, P. 2015. “What is the Rebound Effect? — Energy Efficiency, Part 2.” Union of Concerned Scientists website, November 5. https://blog.ucsusa.org/peter-oconnor/energy-efficiency-what-is-the-rebound-effect-946
Ong, D., T. Moors, and V. Sivaraman. 2014. “Comparison of the energy, carbon and time costs of videoconferencing and in-person meetings.” Computer Communications 50: 86-94.
Oppong, A., M. Jie, K.N. Acheampong, and M.A. Sakyi. 2020. “Variations in the environment, energy and macroeconomic interdependencies and related renewable energy transition policies based on sensitive categorization of countries in Africa.” Journal of Cleaner Production 255. 18 pages.
Osman, N.I., T. El-Gorashi, and J.M. Elmirghani. 2013. “Caching in green IP over WDM networks.” Journal of High Speed Networks, vol. 19 (March) 33–53.
Pargman, D., and B. Raghavan. 2014. "Rethinking Sustainability in Computing." Proceedings of the 8th Nordic Conference on Human Computer Interaction - NordiCHI ‘14. ACM Press. NY, 638–647.
Pargman, D., and B. Raghavan. 2015. "Limits’15: First Workshop on Computing within Limits". First Monday 20(8). Aug 2015. DOI: http://dx.doi.org/10.5210/fm.v20i8.6118.
Pereira, Brian. 2020. “Why Data Centers in India are Going Hyperscale.” DigitalCreed. January 31. https://www.digitalcreed.in/hyperscale-data-centers-india/
Pickavet, M., Vereecken, W., Demeyer, S., Audenaert, P., Vermeulen, B., Develder, C., and P. Demeester. 2008. "Worldwide Energy Needs for ICT: The Rise of Power-Aware Networking." In: 2nd International Symposium on Advanced Networks and Telecommunication Systems.
Pouri, M.J., and L. Hilty. 2020. “Digitally Enabled Sharing and the Circular Economy: Towards a Framework for Sustainability Assessment.” In R. Schaldach et al. (eds.), and New Trends in Environmental Informatics. Springer Nature Switzerland.
Poudineh, R., A. Sen, and B. Fattouh. 2020. “An integrated approach to electricity sector reforms in the resource rich economies of the MENA.” Energy Policy 138. 10 pages.
Preist, C., Schien, D., and P. Shabajee. 2019. "Evaluating Sustainable Interaction Design of Digital Services: The Case of YouTube." In: CHI 2019 - Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems,). Association for Computing Machinery (ACM), 1-12
Preist, C., Schien, D., and E. Blevis. 2016. "Understanding and Mitigating the Effects of Deviceand Cloud Service Design Decisions on The Environmental Footprint of Digital Infrastructure." In: Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems. ACM, 1324–1337.
Raghavan, B. and J. Ma. 2011a. "The Energy and Emergy of the Internet." In: Proceedings of the 10th ACM Workshop on Hot Topics in Networks. Article No. 9. New York: ACM.
Raghavan, B. and Ma, J. 2011b. "Networking in the Long Emergency." GreenNet’11. Toronto, ON, Canada. 19 August 2011.
Røpke, I.; Christensen, T.H. 2012. “Energy impacts of ICT—Insights from an everyday life perspective.” Telemat. Inf. 29: 348–361.
Sandvine. 2014. "The Global Internet Phenomena Report 2014." Technical report.
Sandvine. 2021. "The Global Internet Phenomena Report 2020." Technical report.
Schien, D., Chris Preist, Mike Yearworth, and P. Shabajee. 2012. "Impact Of Location on the Energy Footprint of Digital Media." In: Sustainable Systems and Technology (ISSST), 2012 IEEE International Symposium. IEEE, 1-6.
Schien, D., C. Preist, M. Yearworth, and P. Shabajee. 2012. "Impact of Location on the Energy Footprint of Digital Media." In: 2012 IEEE International Symposium on Sustainable Systems and Technology (ISSST). IEEE, 1–6. https://doi.org/10.1109/ISSST.2012.6228017
Schien, D., Shabajee, P., Yearworth, M., and C. Preist. 2013. "Modeling and Assessing Variability in Energy Consumption during the Use Stage of Online Multimedia Services." Journal of Industrial Ecology 17(6), 800-813.
Shehabi, A., B. Walker, and E. Masanet. 2014. “The energy and greenhouse-gas implications of internet video streaming in the United States.” Environmental Research Letters 9. 11 pages.
Shehabi, A., Smith, S. J., Masanet, E., and J. G. Koomey, "Data Center Growth in the United States: Decoupling the Demand for Services from Electricity Use." Environmental Research Letters 13. 11 pages.
Summerson, C. 2018. “How Much Data Does Netflix Use?” How-To Geek. https://www.howtogeek.com/338983/how-much-data-does-netflix-use/
Taylor, C., and J. Koomey. 2008. "Estimating Energy Use and Greenhouse Gas Emissions of Internet Advertising." Technical Report. IMC2.
The Shift Project. 2018. "Lean ICT: Towards Digital Sobriety." Technical report.
The Shift Project. 2019. “Climate Crisis: The Unsustainable Use of Online Video. The Practical Case Study of Online Video.” Technical report.
Tomlinson, B., E. Blevis, B. Nardi, D. J. Patterson, M.S. Silberman, and Y. Pan. 2013. “Collapse informatics and practice: Theory, method, and design.” ACM Transactions on Computer Human Interaction 20, 4, Article 24 (September 2013), 26 pages.
Tucker, R.S. 2014. “Towards an energy-efficient Internet.” In Proceedings of Optical Instrumentation for Energy and Environmental Applications. Canberra, Australia, 2–5 December 2014.
United States Department of Energy. 2010. "Electric Power Annual 2008." Washington, DC, DOE/EIA-0348(2008), 2010.
Van Heddeghem, W., Lambert, S., Lannoo, B.; Colle, D., Pickavet, M., and P. Demeester. 2014. "Trends in Worldwide ICT Electricity Consumption from 2007 to 2012." Computer Communications 50, 64-76.
Vaughan, A. 2019. "Cloud Gaming May be Great for Gamers but Bad for Energy Consumption." New Scientist. June 11.
Weber, C. L., Koomey, J. G., and H. S. Matthews. 2010. "The Energy and Climate Change Implications of Different Music Delivery Methods." Journal of Industrial Ecology, 14:5, 754-769.
Webster, D. 2020. “Data Centres: shades of green enablement.” ICTFootprint.eu. October 23. https://www.ictfootprint.eu/en/news/data-centres-shades-green-enablement
World Business Council for Sustainable Development and World Resources Institute. 2015. "Greenhouse Gas Protocol Corporate Standard." Technical Report. https://ghgprotocol.org/corporate-standard.