korean: 집에 카펫을 까신다면 집전체에 들어가는 내연 에너지의 10%를 차지하는데, 나무나 콘크리트는 훨씬 적은 내연 에너지를 씁니다.
english: If you put carpeting in your house, it's about a tenth of the embodied energy of the entire house, unless you use concrete or wood for a much lower embodied energy.