According to their website (see http://www.earthship.com/ ), an Earthship is "a radically sustainable home made of recyclable materials." Keep in mind that the second part of this video shows a construction site. There is a nearby neighborhood of maybe 10 or so of these structures which are finished and currently inhabited -- which looks much nicer and more liveable. I did not take photos or videos there, however, because there was a sign with a rather strong message that those who lived there would prefer folks to stay away unless invited. That did slightly surprise me, since I usually find the types of folks who are attracted to these things to be very inviting. However, I can't blame them, and respecting their privacy seemed more important than did getting another photo or two.
From NEW MEXICO III