It would've been nice if this episode actually provided details on how they designed affordable green housing or what materials/procedures were used that made those buildings sustainable, instead of creating this infomercial. Frankly everyone in this episode was so busy patting their backs for being such wonderful human beings that they forgot that shows are meant to be interesting, if not informative. I am very very interested in sustainable homes, buildings, transportation, etc., and this did not help or inform me in anyway... and that's too bad :-(