2. Efficiency - in the use of all resources
3. Recycling -recycle all waste, build from recycled materials,and build from recyclable materials
4. Renewable Resource - rely principally on renewable resources
5. Restoration - help restore the natural habitat
6. Healthy - create a home that is healthy for all
7. Minimal Impact
www.cugreenbuilding.com
Nature is system power by SUNLIGHT, nourish PLANT with water with uses SOIL and the AIR. are bases of nature system/nature economy.
by green building expert and author Dan Chiras.