ICSI in New Scientist

“Internet Responsible for 2 per Cent of Global Energy Usage"
October 26, 2011 | Jim Giles, New Scientist

excerpt: 
How much energy does the internet use? It's hard to know where to start. There's the electricity consumed by the world's laptops, desktops and smart phones. Servers, routers and other networking equipment suck up more power.
research area: 
recap: 
Barath Raghavan and UC Berkeley postdoctoral fellow Justin Ma have found that the Internet and the devices that comprise it are responsible for using about 2 percent of the total energy used by humans