I think my notebook is an uber silent pc
automatic underclocking, 1 fan, silent PSU (except the adapter can't quite keep up with a full load power draw and full brightness LCD). Not only that but I get easy selected optical drive speed, and I can't hear the hard drive except for the occasional click (that the seek noise?), its truly silent while idling.
Now for the whole power thing- I did a research project on nuclear power 2 years ago for my 10th grade english paper. Not to mention last friday we had some navy guy come in and talk to us about nuclear power in physics. World wide, nuclear power provides around 20% of the power, and fossil fuels about 70%. If you inlcuded transportation though, things would weigh even more heavily to fossil fuels. The US has the lower 8% from nuclear power since one or two dozen nuclear plants were built back in like the 70's, but none have been built since, because people think it will make their fish glow and their kids get cancer. The truth is living a few hundred yards downwind of a nuclear plant will expose you to less radiation than 1 x-ray, or the difference of a thousand or so feet of air filtering UV rays. Then of course people are afraid of meltdowns. There have been 2 nuclear accidents, Chernobyl and 3-mile island. Chernobyl had the problem compounded by operator error; 3-mile island was handled correctly and released less radiation than 2 x-rays. All of our reactors are safeguarded against accidents like Chernobyl; the actions that screwed things up there are not physically possible here. And of course there is one last problem- radioactive waste. 2 things to point out here- 1 century ago, nuclear fission wasn't even thought of- if we make as much advancement in the next century, handling the waste may be trivial. And a much bigger point- it is possible to recycle the waste and get 10 times more power from the same amount of uranium- but it produces plutonium, and people automatically think atomic bomb. the truth here is that the plutonium is not high enough grade for nukes and every country capable of refining it is capable of making plutonium themselves.
But anyways, if you really feel bad about your computers power draw go buy a solar panel.
Which reminds me, renewable energy may be environmentally friendly, but its not economically feasible- Powering L.A. would take solar panels covering all of Texas- of course it would be a good use for texas
but not feasible. There are only a few wind farms across the US and they are more expensive.
So, there's only one option- Raise your kid to be a science genius and make him discover a means of effectively harnessing fusion