Want to save huge amounts of megawatt energy of your computer program? Instead of using Google for searching, try using the black version of Google called Blackle. The principle behind Blackle is based on the fact that the display of different colors consumes different amounts of energy on computer monitors. The creators of Blackle cite a 2002 study from Roberson, who tested a variety of CRT and LCD monitors and found that an all black screen consumed less energy than an all white screen on all of them.

The creators of Blackle state that the idea behind the site came from a blog, which estimated that a black Google would save 750 megawatt-hours a year. A megawatt-hour is the equivalent of ten thousand 100 watt light bulbs burning continuously for 1 hour. On the Blackle homepage, the creators of Blackle provide a count of the number of watt-hours that they claim the users of Blackle have collectively saved.

So use Blackle.com from now on to save energy for the later future!