Wind, water and solar technologies can provide 100 percent of the world's energy, eliminating all fossil fuels. HERE'S HOW (via) [more inside]
posted by kliuless on Oct 13, 2009 - 82 comments

Photos of cleaning crews on the Space Needle (via.)
posted by 1f2frfbf on May 16, 2008 - 62 comments

The Solar Ark - built to symbolize the goal of becoming a "clean energy society".
posted by Burhanistan on May 1, 2007 - 7 comments

Hydrogen Fuel Cell Motorbike Unveiled (BBC link, no reg. req.)
The Emissions Neutral Vehicle (ENV), has a top speed of 50mph (80km/h), a range of at least 100 miles (160km) and can run continuously for four hours before the fuel cell needs recharging.
What's more, the bike's "exhaust" is water vapor and is so clean that its drinkable.
Concerns are that the bike is too quiet and plans have been made to add a motor sound to the bike so as to not startle pedestrians. Though I must admit to kind of liking the idea of "stealth mode" motorcycling.
A sort of follow up to this post.
posted by fenriq on Mar 16, 2005 - 57 comments

This excellent overview of pixel noise in digital images also offers up some plugins to help make your photos look better and print cleaner. I'd noticed the effects and noise in much of my digital photos, but had no idea how to remove it -- until now.
posted by mathowie on Nov 2, 2003 - 22 comments

Soap Reviews Lengthy, detailed, wierd reviews by David Lynch (not the director). Excerpt: All that was left was the test of Lux's cleaning power. I wrote "Pronto" on my hand with a Scripto Super Stic med. pt. pen, and proceeded to vigorously scrub my hands under warm water. It took me a whole 1 minute and 19 seconds to completely remove all traces of ink from my palm. This is substandard cleaning performance for a soap, and I was somewhat disappointed by this poor showing. That said, I was impressed by the thick yet bubbly lather that was formed while lathering.
posted by andrewzipp on Apr 12, 2002 - 5 comments

Good news on the pollution front. Town in Northern California finds a way to turn its sewage into non-polluting water and make a wildlife refuge. If you live in Arcata, you can flush your toilet with pride! Quick overview here or the full flush.
posted by keithl on Mar 12, 2002 - 8 comments