Sustainable Suggestion – “Saving energy one search at a time”

In 2007, TreeHugger Mark Ontkush wrote a post on his blog EcoIron titled “Black Google Would Save 750 Megawatt-hours a Year.” The post lays out the following train of thought: “An all white web page uses about 74 watts to display, while an all black page uses only 59 watts.” Google, which has a white background and gets about 200 million queries a day, could reduce global energy use by 750 Megawatt-hours a year by simply changing the color of its homepage to black. (For more detailed calculations and assumptions check out the original post here.)
In response to this post a black version of Google emerged called According to Blackle homepage at publication time, 1,261,003.911 Watt hours have been saved. Give it a whirl yourself and start saving energy one search at a time: