Most Earth Ships have areas for gardening and sustainability so that at least some of the food for the household comes directly from inside the house itself! One I saw even had a pool with sustainably reproducing fish in it, so the family could eat fish from their pool and as long as they didn't over-fish, they would repopulate themselves! That is so powerful to me, because it is true freedom and independence!
This is Rachel's straw bale home in Wales. It won the Grand Designs eco-house award in 2009. Rachel's home was the first two storey load bearing straw bale home in the UK. See more pictures of here home at www.naturalhomes.org/quietearth.htm
Euro Earthship Kitchen Living: See the bottles surrounding the beautiful arching glass doorway. I love the shapes and roundness incorporated, as well as color and light. That doorway leads out to the greenhouse area. Wow. Dream come true.