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0,2 grams of CO2 are spread in the air every second while you are surfing a webpage.
Internet produces the 4% of global CO2 emissions.

ClickClean - Greenpeace report
Everything linked to the online world has a real impact on the environment even if we are not often aware of it. Why? It's simple: to send data to your devices IT processes use servers and networks which consume a lot of electricity.
It's difficult to associate polluting emissions to simple, small actions we do on a daily basis.
  Equivalent to CO2 produced
5 hours video call Driving a standard car for 20km. 4 kg
1 hour of Netflix Driving a standard car for 12km. 3.2 kg
65 e-mails with media Driving a standard car for 11km. 3.1 kg
65 simple e-mails Driving a standard car for 1km. 325g
2 google searches Boiling a kettle for a cup of tea. 0.7g
1 page view Driving a standard car for 15m. 0.3g
5 hours video call
Driving a standard car for 20km.
4 kg CO2
1 hour of Netflix
Driving a standard car for 12km.
3.2 kg CO2
65 e-mails with media
Driving a standard car for 11km.
3.1 kg CO2
65 simple e-mails
Driving a standard car for 1km.
325g CO2
2 google searches
Boiling a kettle for a cup of tea.
0.7g CO2
1 page view
Driving a standard car for 15m.
0.3g CO2
One year of internet pollutes as much as civil world's flights do.
Among responsibles for IT heavy impact, two main categories can be identified:
Web users
For how we use internet, considering time and habits.
Web products
For how online products and services are built and designed.