One of the oldest Earthship layouts is the Global model. Each time the Global model is constructed, we learn from it. Then, using the lessons from each building, we create better methods and options for the design and construction of future models. The Global design allows it to function off the grid no matter what climate the building is in. This makes it a great choice for Colorado and the 300 days of sun per year we have here.
In this model, a network of cooling tubes under the earth, and convection skylights, work simultaneously to supply the dwelling with natural air conditioning and aeration. The Global model has been built in a variety of places around the world including: Canada, Holland, Mexico, Turkey, and the United States.
The Global Earthship model is easy to change and most Global models are built by the Earthship staff within a few months.