I caught part of a program the other night on a 60 year old woman and her husband who built a home of straw bales. I've heard of/seen examples of such homes before, and wondered if you or anyone you know lives in such a home.
It blended right in with the neighborhood, in fact being more attractive than many. I didn't catch what was used for the exterior. The interior was finished with many re-purposed and recycled items, such as antique doors, a carpenter's table for the kitchen island, recycled flooring and more. The straw enabled more shaping of the interior walls. It was such an organic and elegant home.
Could homes such as these become mainstream? It would save on many trees, and would use a material that can be replenished every year. The program did say the cost of labor on these homes is very high, but these people had much volunteer help.
This idea and others have been around for quite a while, and people talk about a new way of doing things, yet not much seems to change. Or maybe 100 years is old to us, but not to change on Earth.