Build Beside Mountain, the Most Environmental House

Environmental house appears when human beings appear, just as a man named BRAIN has said (not original remarks), when man first walked the earth, they lived in cave and underground houses which provided safety. It seems that we have come full circle with the implementation of earth homes in today’s society. The ecological benefits are simply undeniable! When I saw the house image, I consider it as the most environmental house. It's earth house designed by Peter Vetsch. It's an amazing design and distinctive concept. It makes full use of natural environment and leaves less carbon footprint.
Our company has created many architectural renderings or architectural visualization and 3d walkthrough for modern architecture which are also very nice, but less imposing compared with earth house.
I think architecture which has close realationship with environment can get more and more attention.