Episode 138: Natural building is good for both people and planet. In this episode we hear from natural builders who are committed to their craft and who create beautiful structures using natural locally-sourced materials. Recorded at the Natural Building Colloquium at Quail Springs Permaculture Center in New Cuyama, CA, I speak with many natural builders including Sasha Rabin, Linda Smiley, Patrick Hennebery, Liz Johndrow, and Bob Theis.  I visit projects at the Colloquium including a feral straw bale office- created to be an affordable replacement for a trailer,  a cob bench and Rumford fireplace- part of an outdoor gathering space, and a plaster wall- a gorgeous butterfly with layers of color derived from natural pigments.