We can manage cost in the ever expensive Boulder county, by utilizing recycled materials and saving energy utilizing simple technology like earth sheltering, vapor resistant insulation, and earth tubes. Future sustainability in Boulder will be food independence. As we start to pay the real climate and health costs associated with fossil fuel dependent food these systems will be critical.
I love this drawing which simply explains a low energy way to cool Lyons Boulder Greenhouses. Check out The Aquaponic Gardening Community for an equally simple written explanation. I recommend checking out Milligan's Gander Hill Farm for an easy to understand discussion on how to overcome potential problems with this system. Just like the greenhouse above the climate battery good design will save money and headaches.
GreenHouses in Boulder County under 120 ft2 do not require a building permit