Black is the new Green: does screen color affect energy usage?

Interesting conversation happening on Mentalfloss.com (and elsewhere)about whether a white screen uses more or less energy than a black one. They say that if Google was black, it would save $75K / year in energy bills.


Although apparently it doesn't save electricity, but actually uses more, on LCDs (and CRT usage is going down...)

Still I really liked the idea of a website being "green". For an installation I'm working on, which had to feature a laptop but was for a green-conscious organization, I had to try to find a way to make it more "green": green hosting providers? green laptops? (no such thing! even the greenest is not very green right now... though Toshiba makes one that it sells at Walmart (the Satellite) that gets great ratings.

green is just not a word you can use for the web, yet.

I'd love to hear peoples' ideas of how to make the web more green...

By the way, i checked out one of the links someone posted to Mentalfloss: hilarious:
http://www.ninja.com/

it's a Google Co-op project (Google Co-op is a platform that enables you to customize the web search experience for users of both Google and your own website.)