Underground dome house of the family who led geese to fly home

Paula and Bill Lishman spent many winters in a poorlyinsulated Aframe cabin before realizing they needed to go underground to use the earths energy to stay warm, so they knocked the top off a hill, dropped in ferrocement domes, and covered it up again with dirt. Thanks to skylights cut into every dome and the whitepowdered marble that covers the interior, their earthsheltered home is naturally welllit despite being below the frost line. Fifteen feet below ground, the soil temperature remains abou