Earthships are an underrated aspect in architecture and design because they not only challenge the status quo, but because they also create new options for sustainable living that integrates structures within nature. Although they are extremely energy efficient and environmentally friendly, earth homes can be further improved. Architects need to investigate options that include building with more light and open spaces so that residents don't feel as if they are living in one large dark basement. Ventilation and lighting difficulties can be prevalent, as well as the risk of mold and possibly radioactive material build up. An architect's own level of environmental awareness greatly affects earth architecture, reflecting the designer's individual personality, in addition to site specific issues that controls each decision. The solutions result in many different types of earth architecture found across the globe, or better yet, within it.