According to a study supported by the German government, streaming high-definition video and game streaming can cause a lot of greenhouse gas emissions, depending on the technology used.
The report issued by the German Federal Environment Agency calculates the amount of carbon dioxide produced by data centers that store data streams and the transmission technology used to deliver them to consumers.
The conclusion reached is that the CO2 emission caused by the transmission of video streams through optical cables is the lowest, 2 grams per hour. Using copper cables can produce twice the amount, and 3G mobile technology can produce a large amount of carbon dioxide of 90 grams per hour.
The authors of the report said that streaming media transmission through the next-generation mobile technology called 5G will result in 5 grams of carbon dioxide emissions per hour, indicating that widespread promotion can help reduce energy consumption.
The report said that at the same time, data centers accounted for only a small part of the total energy consumption, although their numbers vary greatly depending on server usage and cooling efficiency.
Christian Stoll, an energy expert who was not involved in the study, said these figures seem reasonable, but pointed out that these figures do not take into account the power consumed by devices used to watch streaming videos.
Stoll, a researcher at the Energy Market Center of the Technical University of Munich and the Energy and Environmental Policy Research Center of the Massachusetts Institute of Technology, said: “This accounts for a large part of the total emissions.”
In introducing the report, German Environment Minister Svenja Schulze said that this research is to help decision makers provide reliable data, as digital infrastructure is becoming more and more important, and at the same time, countries are working to reduce greenhouse gases that heat the atmosphere. emission.
She said: “If you execute it correctly and choose the right data transmission method, you can stream data without affecting the climate,” she said. “From an environmental point of view, it is better to set up more public Wi-Fi hotspots because it is more climate-friendly than streaming on mobile networks.
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