According to research by Global Action Plan, 86% of businesses do not measure the carbon footprint of their IT operations.
Worst still, the view is, most IT departments are terribly inefficient - and it is not just a question of leaving things on standby overnight, or not switching off at the plug (all those little leds eat up a lot of energy). Many systems are not used efficiently, servers underutilised and so on.
They have produced a report where you can find other information about IT related stuff, which is available from:
Efficient IT
The report says that carbon emissions from ICT will exceed that from aviation shortly - so we really do need to do something about it!
kind regards
Stephanie