Lesson 1Does “Digital” equal “Green” ?
- Notion 1 - What´s the environmental impact of the digital world?
- Notion 2 - Sizing up Internet´s carbon emissions.
- Notion 3 - What is the environmental impact of our working habits? (devices)
- Notion 4 - What is the environmental impact of our working habits? (services)
- Notion 5 - Design is where sustainability happens.
- Notion 6 - Review of the main concepts.
Notion 4
What is the environmental impact of our working habits? (services)
Target skills
Learn how we can contribute to digital sustainability as a user of digital services.
According to the Internet World Stats, in March 2021, there were 5,168 millions internet users, which makes 65.6% of global population.
Here is a picture of what a minute on internet looked like in 2021:

Those are just some glimpses of how much data is travelling within a 60 second timeframe. This internet traffic only tends to increase.
Now, let´s see how this data travelling and storage is reflected in CO2 emissions. Here´s an infographic that shows how much CO2 is produced by our daily online activities and popular platforms.
What can we do as internet users in order to reduce this footprint:
- Switch off video during conferencing
- Reduce your e-mail size by providing links instead of attachments or using lower resolution images;
- Avoid sending unnecessary e-mails, like those only saying “Thank you”; or “reply all” option;
- Play songs as audio files rather than streaming them as video on YouTube;
- Play lower resolution videos (especially on small screens) and turn off auto-play features;
- Unsubscribe from e-mail distribution that you don´t really need;
- Reduce data storage by compressing documents and deleting everything unnecessary;
- For quick searches use a phone or tablet instead of a laptop or desktop;
- Use Wi-Fi instead of mobile networks, which have 20 times more impact in terms of energy use;
- Bookmark your favourite sites to access them without using search engines