JXO

“When your screen is white, be it an empty Word page or the Google page, your computer consumes 74 watts, and when it’s black, it consumes only 59 watts. Mark Ontkush wrote an article about the potential amount of energy saved if Google had a black screen, taking in account the huge number of page views.
In response, Google has created a black version of its search engine, called Blackle, with the exact same functions* as the normal version, but with a lower energy consumption.”

Pois isso, que os blogues mouros coma este (auto-promoçom verde) consumem muito menos que os brancos.