“…Many different approaches exist to achieve this goal, one of which is the 'Earthship', invented by architect Michael Reynolds based in Taos, New Mexico, USA. An Earthship is an earth-sheltered autonomous house made substantially from reused and re-cycled materials such as earth-filled car tyres for the load bearing walls providing a significant thermal mass effect, and glass bottles and aluminium cans as 'bricks' in non-load bearing walls (Freney, Soebarto & Williamson, 2013A). An equator-facing greenhouse provides passive heating, and the designs often use earth tubes for passive cooling and heating (Freney, Soebarto & Williamson, 2013B).…”