Thank you again for this great information, Apophasis. At the very least it should prove that Earthships are far from being problem free and much less easy to implement for those seeking a more “natural” and debt-free way to build themselves an off-grid house!
That said, recent Earthship models seem to contain various tweaks to improve on some of the problems you have pointed out, as can be seen in the “Phoenix” model i linked to in my previous post. The key word here being “improve”, not “solve”. Regardless of the validity of the Eartship model, those very tweaks and workarounds are still great lessons and ideas for everyone, as you have pointed out.
Personally, i believe a sustainable and cheap building model should first focus on putting to good use materials which are easy to source on location, even before looking for garbage to recycle. A simple rocket stove might be a simpler and vastly more efficient form of heating in an area with a mild climate and seasonal availability of dry tree branches, compared to the effort and expense of adopting the earthship model as a whole, for instance.
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