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x3rotoday at 11:13 AM5 repliesview on HN

Chrome is used by about 3.8 billion people [1]. So, if this is rolled out to every chrome user over the next year or two, this would generate about 15 Exabytes of traffic. It's difficult to find accurate, useful numbers on this, but lets assume 29 grams of CO2e per GB, this would be about 450k tons of CO2e. This in turn, equates to average household CO2 expenditure of almost 300k households.

So make your own judgement, but this seem pretty significant to me.

[1]: https://www.aboutchromebooks.com/global-chrome-user-base/ [2]: https://www.iea.org/commentaries/the-carbon-footprint-of-str... [3]: https://www.anthesisgroup.com/insights/what-exactly-is-1-ton...


Replies

Schiendelmantoday at 12:35 PM

This is about the same as each of those people streaming a movie to their TV. There's no there there.

altcognitotoday at 12:41 PM

> but lets assume 29 grams of CO2e per GB

29 grams for something that takes most folks less than 20 seconds to download? How many watts (neglecting the machinery was going to be running regardless of whether you are transferring something!) do you think it takes to transfer data?

https://www.eia.gov/tools/faqs/faq.php?id=74&t=11

Coal, the absolute worst of all, represents 18 grams over 60 full seconds to produce 1000 watts of power.

show 1 reply
swader999today at 1:26 PM

Yes and this is just the first version of this model. As if there won't be an update (complete replacement) of the model every few months.

semiquavertoday at 12:36 PM

Traffic is not homogeneous in total transfer cost. CDN-hosted data at the edge, close to the user is much cheaper than data that has to transit many hops. At the asymptote, transferring data between machines on the LAN is essentially free.

user34283today at 2:06 PM

Other comparisons:

About equal to a major iOS update at 8 GB x 1.5B.

Netflix and YouTube together are perhaps around 200EB/month.