HI for many of us Google is the second Brain. We use it frequently. It uses white screen which consumes higher power.
 
Read the following…

If Google had a black screen, taking in account the huge number of page views, according to calculations,

750 mega watts/hour per year would be saved?
 
In response Google created a black version of its search engine, called Blackle, with the exact same functions as the white version, but obviously with lower energy consumption:
 
Try www.blackle.com for a change.