Check out this website, Earthbag construction, for a more intense version of sustainable design. It’s completely environmentally friendly. It’s perfect for places that need for homes, but can’t afford the expensive materials we use here in the United States.
Sustainable design is very new but becoming very popular. At Michigan State University, the Brody cafeteria is on it’s way to becoming LEED certified through high efficient windows, lighting, low energy and water appliances.

