You may think that an existing or historic home—known for its drafty windows, old-fashioned mechanical systems, and obsolete construction materials and techniques—would be one of the least sustainable, green-friendly buildings around, but you'd be oh-so-very wrong!  Photo 19 of 20 in 20 Modern Homes From the Midwest from Modern Homes Across the American Midwest

20 Modern Homes From the Midwest

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Geoff and Joanna Mouming’s compact modern farmhouse is the first permanent structure at Yum Yum Farm in Wellman, Iowa. On the field that stretches out before it, organic vegetables will soon make attentive farmers of the Moumings.