energy

[totalentropy]

In 2010, servers were responsible for 2.5% of energy consumption in the United States. A further 2.5% of United States energy consumption was used by cooling systems required to cool the servers. It was estimated in 2010, that if trends continued, by 2020, servers would use more of the world's energy than air travel.

http://vkontakte.ru/note620394_11096096