The global discussion on green IT gathered momentum in 2007 when ICT analyst Gartner announced that the information and communications technologies (ICT) sector contributes two per cent of global greenhouse gas emissions. The recent study SMART 2020: Enabling the low carbon economy in the information age came to the same conclusion about today's figures, and looking out to 2020, saw that the global market penetration of PCs, data centres, telecoms networks and devices would cause the emissions to double in real terms under business as usual assumptions.
http://www.telecoms.com/itmgcontent/tcoms/news/articles/20017559422.html;jsessionid=299C4AF806E1EC8822AB649CCEBEBDB7
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