Eco Lingo: Earthship

Eco-lingo is being tossed around left and right these days. We're demystifying common terms to help you figure out which words are the real deal... and which are just green jargon.

Earthship

Today's word: Earthship

Definition: You think your neighbors who recycle their packing peanuts are hardcore? Earthships are the ultimate example of a fully sustainable home. Made of all natural and recycled materials, like earth-rimmed tires, bottles and cans, an Earthship is supposed to minimize the dweller's dependence on public utilities and fossil fuels. So, instead of a thermostat and AC they use the sun and earth, instead of toilets they use external botanical planters to treat sewage. For electricity, they rely on solar panels and wind modules. Food and water? Well, rain and snow will melt, and food grows in gardens -- indoors and outdoors. You can buy an earthship in Guffey, CO for $122,000 or if you just want to test drive one, rent an earthship for around $120 a night.

Technophiles, don't fear. These are no caves. The rentals come with high speed Wi-Fi, digital satellite, fireplace and a full kitchen. See more models and get more info at Earthship Biotecture, the pioneers that design and build Earthship houses.

Usage: "Sometimes when I sit in my McMansion, with the air conditioning blasting and all the lights on, I think that maybe it's time I move into an earthship."

The Verdict: The Real Deal? You bet your recycled cans it is. But is it a realistic option for everyone? Probably not.