He’s currently engaged in Haiti, where he is building an earthship, a structure made from used tires, bottles and other waste material salvaged from the area and packed with dirt. The earthship measures just 120 square feet and is earthquake and hurricane-resistant. It is designed to harness solar and wind energy to generate its own power, and will collect usable rainwater. The earthship will also have flush toilets and a provision for residents to grow their own food.