This is a wonderful site.
Here is the link and following it a brief description:
http://www.calearth.org/
Cal-Earth (The California Institute of Earth Art and Architecture)
is at the cutting edge of Earth Art and Ceramic Architecture technologies today. Founded and directed by the internationally renowned architect and author Nader Khalili in 1986, it's scope spans technical innovations published by NASA for lunar base construction, to design and development of housing for the world's homeless for the United Nations.
Cal-Earth is a non-profit foundation dedicated to research and education of the public in environmentally oriented arts and architecture. It's philosophy is based on the equilibrium of the natural elements of earth, water, air, and fire, and their Unity at the service of the arts and humanity.