Whatever facts you believe in, the inevitable truth is that information technology, much to our disbelief or unawareness, contributes to global warming.
Much of the ignorance on the subject is attributable to the fact that unlike cars or factories that visibly emit smoke, computers are silent, odorless, and most of the time confined in air conditioned rooms making the heat produced by the electric processes inside the computer virtually untraceable.
Hence, Green IT or Green computing which is the use of environmentally sustainable IT practices. Simple things like setting your computer to hibernate when it's not in use saves electricity and in turn reduces heat emissions can go a long way in saving the environment.
paul obmina entry no. 5