Old but still green - LEED sooo 1960's

Big & Green 2003...history behind LEED Green architecture became a worldwide cause in the 1960s and 1970s in response to growing awareness of environmental degradation and rising fuel prices. The first green architects focused primarily on single-family homes, although some promising work was done on other small-scale buildings. In the late 90's  several rating systems such as LEED (Leadership in Energy and Environmental Design) developed by the U.S. Green Building Council and BREEAM (Building Research Establishment Environmental Assessment Method) developed by Building Research Establishment in the United Kingdom developed as criteria for evaluating these relatively new design approaches. 

Dutch Pavilion, Expo 2000 (Hannover, Germany).

A prototype for the introduction of nature in physically dense cities, the Dutch Pavilion included a water-reclamation system to capture rainwater and distribute it throughout the building.

From 2003 show: "Sustainable architecture is a potent new movement that could revolutionize the way our buildings and cities are designed and constructed," "This movement emerges from an increasing respect for our environment, combined with a continuing demand for new construction to meet the needs of urban and regional growth. And it recognizes — now more than ever — that energy must be used wisely and conserved."