Via Be Specific Blog, Google co-founded the Climate Savers Computing Initiative (CSCI).
Do you leave your fridge door open after grabbing what you need? Do you leave your vacuum cleaner running when you aren’t cleaning? Of course not. The idea of doing either of these things sounds silly, yet many people don’t think to turn off their computers after using them. By using power management tools on your computer and buying more efficient computers, you can save nearly half a ton of CO2 and more than $60 a year in personal energy costs. Google co-founded the CSCI to promote a smarter, greener computing future. The simple changes above can have a HUGE collective impact; our goal is to reduce carbon dioxide emissions by 54 million tons per year by 2010 — the equivalent of taking 11 million cars off the road.”