Earthships are sustainable buildings made from natural and recycled materials, designed to be self-sufficient. They utilize passive solar heating, natural ventilation, and rainwater harvesting to minimize reliance on external resources. The structures often incorporate features like green roofs and indoor gardens, promoting a harmonious relationship with the environment. These homes are typically built into the earth, providing insulation and stability. Earthships aim to reduce energy consumption and waste, making them an eco-friendly alternative to traditional housing. They are often used in off-grid living scenarios, showcasing innovative solutions for sustainable living.