Carbon trust is one of the world's leading international low-carbon consulting company, has been converted into a mission to promote low-carbon economy.In the recently released the latest white paper, this paper introduces the online video on demand service carbon impact, through the white paper, can deepen the understanding of carbon emissions produced by online video, and can help decision makers to make decisions in the future for reference.Video industry rapid development in recent years, but the online video industry on the impact of climate and no consensus, this white paper is conveniently released in this context.
This from the carbon trust's latest research included in the video library1Distribution and watch the video of two parts, according to watch the video on demand system, (not including live), to analyze the life cycle energy consumption, and estimate the carbon emissions per hour online video.
According to the survey, the white paper, personal watch an hour on demand video the carbon footprint of emissions than any other daily activities are relatively few.In Europe, an hour to watch video about carbon footprint for 55 grams of co2 equivalent (gCO2e), which is equivalent to ordinary electric kettle water three times of carbon emissions.2
Although the results of the survey is similar to other recent estimates, but lower in comparison with several previous studies, this is mainly attributed to the energy intensity of the past will all be considerably higher than 2020 related numerical values.
Analysis also shows that watch video equipment in the carbon footprint impact proportion is the largest (over 50%), such as using 50 inches televisions to watch the video's carbon footprint (watch the video equipment energy consumption) is about 4.5 times that of notebook computers to watch more of a mobile phone more than 90 times.With the progress of science and technology, laws and regulations of sound and the implementation of the standards (such as backup power and maximum power threshold), the end user's video equipment also become more efficient.With the equipment according to the development of technology, the advantage of energy efficient reflected.In specific surface area, less energy consumption of the television, so more energy efficient, it also offset the problems brought by the increased TV size.Some studies say, with the emergence of more energy-efficient televisions, some families in the TV related energy consumption decreased.3
In addition, the video resolution and set the video quality change factors, such as the high quality is adjusted for normal quality, its influence on carbon emissions are only.
White paper calculates carbon emissions by conventional methods, namely according to each unit of data transmission in the average energy intensity of transmission network.4At the same time, the paper also introduces the other methods, such as according to the emerging power model method, better estimates the instantaneous use of energy in the network, used to assess the video quality in the short term the impact of marginal changes.Through these methodologies, we on video online carbon emissions associated aspects of correlations, this paper introduces the new point of view.Through the understanding of the online video carbon footprint, industry colleagues to work together to reduce the carbon impact of online video.
The progress of science and technology, means that the transmission network equipment for the Internet to become more efficient.It is important to note that with a lower energy intensity, at the current information and communications technology (ICT) industry's action (e.g., to strengthen the procurement of renewable electricity) and developing trend, service in the industry is expected to continue to reduce carbon intensity, including video web sites.
In order to more clearly understand the online video of carbon emissions, and there are many research opportunities, but the impact on the online video in this white paper and expounds the background and understanding is very valuable, but in the use of video web site for the future and more help to the widespread use of ICT industry decision makers.
White paper released by the carbon trust, and by Netflix (Netflix).At the same time, the white paper released is closely connected with DIMPACT project members to work together.(DIMPACT project is from the top research expert at the university of Bristol and global 13 of the most innovative media companies)
Glynn Carnstone director Roberts (representative DIMPACT project) said:
"For the carbon trust online video released carbon impact white paper, welcome DIMPACT project team.
DIMPACT is a collection of many top media companies and leading experts from Bristol university research team, designed to help understand and manage digital media sector carbon impact.Coordination with the project team, introduced a reliable methodology, measuring tools, through these services will help the industry more clearly understand throughout the end user is relatively 'downstream' carbon impact.
Can accurately in order to explain the value chain of emissions, and understand how to actually reduce the carbon emissions, accurate measurement is very important in the industry.This white paper released in a timely manner to DIMPACT project has the milestone significance."
Andie, associate director of the carbon trust Stephens (white paper) and the lead author of the said.
"Our white paper introduces the interesting information, that is, one hour to watch online video than any other daily activities generated much less carbon footprint.With power grid continues to move in decarburization and the telecom network practitioners use renewable electricity network to its power supply, decarburization will get further development.This research is supported by several industry and academic experts, we hope that through this research, can impact on the online video industry carbon build communication platform and extensive use of ICT industry.In addition, the paper also share some misunderstanding and stale data to estimate before updated."
The carbon trust's general manager Zhao Lijian said.
"Because of the domestic carbon emissions factor on the high side of power grid, and telecommunications networks, Internet companies, such as data center has not yet been widely take measures to improve the energy structure in the proportion of renewable energy, the domestic online video carbon emissions may be higher than that of Europe, we call for telecommunications companies, Internet companies related to online video, data center operators and manufacturers of electronic products can pay more attention to their products and services of carbon emissions, carbon emissions influence quantitative analysis, and operate continuously reduce carbon emissions, for China's" carbon peak ", "carbon neutral" target, and the international community to achieve goals to contribute to the Paris agreement."
Click here to read online video carbon impact report (English)
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Editor's note
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About DIMPACT
DIMPACT cooperative project initiated by the Carnstone company, from the top research expert at the university of Bristol, and 13 of the most innovative media company in the world.DIMPACT project has several companies involved in: including the BBC, BT, Cambridge university press, channel 4, dentsu, the rich man, ITV, Nordic entertainment group, netflix, Pearson company, RELX, Schibsted and bskyb.DIMPACT project Responsible Media in 2015 BBS (Responsible Media Forum) have been proposed, BBS on a group of companies want to better understand the digital Media products and services/carbon emissions of greenhouse gases.DIMPACT after project formally established in 2019, and set out to work with computer science at the university of Bristol has developed a tool, for digital publishing, advertising services, business intelligence, and in the field of online video industry and provides evaluation module/carbon emissions of greenhouse gases.
About the carbon trust
Carbon trust was established in 2001, is dedicated to helping governments, businesses and organizations to reduce carbon emissions, resource efficiency, promote the commercialization of the low carbon business, systems and technology process, so as to accelerate the sustainable development of low-carbon economy, and benefit from it.
The carbon trust:
- To help the government and the enterprise development strategy based on climate science and realize the goal of the Paris agreement.
- Provide expert advice and prove to help investors and financial institutions to build up confidence, convinced that green finance can truly realize environmental targets.
- Support the development of low-carbon technologies and solutions, energy system to lay the foundation for the future.
Carbon trust, based in London, global team has more than 200 members, from five continents over 30 countries.
- Data center, content distribution network, network transmission, home routers, end users to watch TV peripheral equipment, related equipment
- Electric kettle every 19 minutes to burn a boiled water is equivalent to watch online video of carbon emissions
- Singh et al., 2019:2017 U.S. residents consumer electronic energy consumption.Fraunhofer the United States center for sustainable energy system
- In this case, the energy intensity refers to each unit through the transmission network transmission data required for the average energy, namely kWh/GB.
