Please visit the following YouTube links to see how China is building some of her planned 168 eco-cities:

Introduction

Suzhou  Tianjin  Nansha  Qianhai Water City 

I
watched Shenzhen, now a leading megapolis of 12 million inhabitants,
rose from a paddy field about three decades ago. The 168 planned
eco-cities are far smaller, on average of a million people. Though not
all may succeed, chances are that quite a large number will become
cities of the future within the next two decades.

China is now just over 50% urbanized. Click here
To create a higher-income and more consumption-oriented economy, the
country is building 221 new cities, each with a popultion of a million
or more, compared with a total of only 35 cities of this size in the
whole of Europe. Adding 250 million more urbanites by 2025, this is the
largest and fastest urbanization drive in human history. Click here

China's urbanization drive is part of a global shift to the cities. According to McKinsey Global Institute's report "Urban World: Cities and the rise of the consuming Class", June, 2012, the GDP of the world’s top 600 cities will account for 65% of global growth from 2010- 2025. Global
city expansion will need 85% more buildings, 80 billion cubic meters
more water, and 2.5 times the current port infrastructure. Click here

Now,
with urbanization spearheaded by the developing world, particularly
China, the race to build the next better eco-city or intelligent city is
on. Click here