Nerooogle (literally – Blackooogle) is an italian initiative for energetic saving: a black background not only reduces optical stress but allows to save thousands of watts.
Developers say they realised an idea (posted here) byMark Ontkush
"Take at look at Google, who gets about 200 million queries a day. Let's assume each query is displayed for about 10 seconds; that means Google is running for about 550,000 hours every day on some desktop."
Using Neroogle (or if Google released a black backround) "...turns into a global savings of 8.3 Megawatt-hours per day, or about 3000 Megawatt-hours a year. Now take into account that about 25 percent of the monitors in the world are CRTs, and at 10 cents a kilowatt-hour, that's $75,000, a goodly amount of energy and dollars for changing a few color codes"