From: IT green-up stymied by vicious cycle - Computerworld

"To achieve 60% carbon reduction, if the world just stood still, would be challenge. But the reality is that the amount of IT on planet will have more than doubled by 2020 -- so if we are going for a 50% cut we need to reduce the carbon emitted by a factor of two just to meet our targets." - Richard Barrington, head of sustainability and public policy, Sun Microsystems, Inc.