...global information and communications technology industry accounts for approximately 2% of global CO2 emissions – a figureequivalent to the aviation industry.1 By 2009, US Datacenters will house 50% more servers than in 2007 Energy costs...
http://blogs.intel.com/csr/Intel%20carbon%20footpt%20conf.pdf
...global carbon dioxide emissions ...that’s a figureequivalent to the aviation industry. Today, IT features...carbon dioxide emissions. Incredibly that’s a figureequivalent to the aviation industry. A significant contributor...
http://uk.wyse.com/green/action.pdf