When you're living at 7,750 feet above sea level, with a summer growing season of 80 days, at best, between killing freezes, how can you grow your own food? The answer, as it turns out, is pretty cool: A geodesic dome solar greenhouse.
Greenhouse design being used in Colorado at 30 below 0 temps with no added heat other than solar and stored energy. it will have 55 gallon barrels filled with water only. These will be stacked against the inside back wall 3 high and 7 wide.