Official Google Blog: Powering a Google search:

In terms of greenhouse gases, one Google search is equivalent to about 0.2 grams of CO2.

That's not much, sure, but I'm not sure I'd want to see how much is needed for my morning shower.

Compound with this claim from the same entry:

For comparison, the average adult needs about 8000 kJ a day of energy from food, so a Google search uses just about the same amount of energy that your body burns in ten seconds.

So next time someone asks you a question you can answer in less than 10 seconds, don't give 'em a hard time for not hitting up the 'net.

Speaking of Circuit City, talk about not much on sale. I mean cables for 30% is always nice, but I'd like my 60 day game card to ring with the same discount. It's currently at 10.