So, I just discovered a product called "strawboard." Apparently it's been used in Europe for 40+ years, but it's kinda new in the US. Some sources say that a typical house requires about an acre's worth of clear-cut timber, which would take about 30 years to replace. That same house (according to these sources) could be built using 18 acres of straw -- which is a waste product from wheat production. I've been searching, but I haven't found any serious problems with using strawboard. Presumably, it doesn't hold up as well to moisture as traditional wood does, but I don't...