Official Google Blog: Practical steps towards a greener, energy-efficien...: "(Cross-posted from the European Public Policy Blog ) Update June 14, 9:14am: Videos of all the presentations at the Data Center Summit are now available on our website.
Data centers are very important to us—they’re critical to the cloud services we deliver. Over the last 12 years, we’ve put a lot of effort into minimizing the amount of energy, water and other resources we use—because it makes financial sense, and because it’s good for the environment too. That work means that today, we use half the energy of a typical industry data center. ..."
Here Google talks about the data-centers and how to work and operate them efficiently, thus saving electricity and making data-centers environment friendly. A must read.