The nationwide search America’s Greenest School, sponsored by IC Bus, invites students and teachers to explain what their school has done to go green. The winning student will be awarded a plug-in hybrid bus for his or her school.

Source:America's Greenest School 2009

Tom’s of Maine produces many natural personal care items such as Naturally Waxed Antiplaque Round Floss. Read this product review to see how Tom’s ADA accepted floss has been rated.

Source:TOM's Round Floss

Shade of green: Luscious lime

Items needed: Air compressor, four to six quarts synthetic oil, common sense, willing mechanic

Why this hack: Because you can’t afford a Prius

Heart of the hack: This one’s simple, folks. First, you gotta check tire pressure. Consider: There’s a 1% loss of fuel efficiency for every 2 PSI under maximum pressure (usually in the 35-psi range). So if you’re running at 26 psi, you’re giving up about 5% fuel efficiency. Why, on my 1990 one-ton Chevy pickup (454 and four-on-the-floor, if you care, which you should), that’s… um… 1/2 mpg.

As more and more people rebel against ticky-tacky, cookie-cutter homes, options are growing for more unique, satisfying dwellings. Popular Mechanics‘ Chris Sweeney has just put together a great list of 18 of the world’s strangest homes. And though there are arguably some even stranger ones out there (the toilet-shaped home, for one, or the coral castle), one of the things we like about Popular Mechanics’ list is a strong focus on sustainability.

As more and more people rebel against ticky-tacky, cookie-cutter homes, options are growing for more unique, satisfying dwellings. Popular Mechanics‘ Chris Sweeney has just put together a great list of 18 of the world’s strangest homes. And though there are arguably some even stranger ones out there (the toilet-shaped home, for one, or the coral castle), one of the things we like about Popular Mechanics’ list is a strong focus on sustainability.