As a kid, I tried to make my own solar ovens. I fashioned old windows together, and put pans of water inside to heat. They usually sucked, but these experiments spurred my fascination with greenhouses. Like my grandfather, I love growing things, and would imagine creating an endless summer indoors where I could grow exotic plants. Last year, my childhood fixation was revived when we visited the earth-ships in Taos, New Mexico. This summer, I finally decided to design and build my own…