According to the blog EcoIron, displaying a black background on the pages of Google allow substantial energy savings. Indeed, according to these measures, the difference in consumption per screen, a white and black at 20%. Proceeding from the fact that Google alone approximately 200 million page views per day. If you tell someone about 10 seconds remaining on a page, Google therefore operate approximately 550,000 hours a day on our PC. A final this simple color change at the global level would save 3000 megawatts / hour is the equivalent of the peak production of two new nuclear power generation (EPR).