The greenest home is the one you don't build. If you really want to save the Earth move in with another family and share a house that's already built. Better yet live in the forest and eat whatever the squirrels don't want.
My message especially to young people is to have courage to think differently courage to invent to travel the unexplored path courage to discover the impossible and to conquer the problems and succeed. These are great qualities that they must work towards. This is my message to the young people.