Many groups have advocated the construction of "eco-cities" or "eco-communities" that incorporate a commitment to the natural environment.  A large number of attempts have been made to construct such cities and communities.  None have successfully approached genuine sustainability.
NewVistas Model

Description and Targets

NewVistas is an eco-city by any definition.
 
Targets:
1. Comprehensive community and sub-economy
2. Limitation of ecological footprint to a level that would allow the earth to support seven billion people on the specified model
3. Full-cycle systems for food, water, sanitation, renewable energy, and materials