A new form of city living which includes the "greening" of megacities and even small cities starting by recycling whatever is possible and cuting car use to a minimum; as well as:

• Developing energy-efficient buildings.
• Placing emphasis on increasing the use of public transportation.
• Redesigning how cities are organized to integrate work and living areas into a single neighborhood; rather than separating cities into residential, commercial, and industrial zones.
• Utilizing hanging gardens and water fountains to cool the air.
• Developing wind turbines and roof-top solar cells to generate the electricity used in buildings.
• Rooftop rainwater collectors to supply much of the water needs.
• Minimize the need for the use of cars by building multiple centers where people live close to their work in high-rise blocks that are also near public transportation hubs.
• Planting more trees along the streets to help reduce the air temperature.
• Have more low-rise buildings surrounded by forests, organic farms, and lakes.
• Providing better recycling of waste products with anaerobic digesters to convert sewage and compost into biogas which will be used for cooking, heating, and power generation.
• Develop walkable areas with shops, schools, jobs, and services close to housing.
• Lay out streets to favor public transportation, bicycles, and pedestrians; and to make it difficult for cars to be used.
• "Urban farming creates green spaces, recycles waste, cuts down on freight transport, prevents soil erosion and is good for the microclimate."
  —Jac Smit, president of The Urban Agriculture Network run by the UN Development Program