中國政府委託德國環保建築師Bill Mcdonough設計環保城市：
The Chinese plan to build housing for as many as 400 million of its citizens by
2017. With this in mind the Chinese government commissioned world famous
eco-architect Bill McDonough and partner Michael Braungart to design a prototype
city. Here, McDonough explains describes his vision for a sustainable, thriving
metropolis.
在Big picture T.V中有一簡單的訪問，講述環保城的概念，如何把城市的 ”廢物” 變成有機的肥料，如何發展小型的再生能源等等，使城市和農村有一個互相依賴的關係，而不是一面倒的把資源傾斜到城市．從理念層面很有啓發性．
但４億新增城市人口裡，大概不到千份之一是住在環保城裡．．．這個示範單位的作用會有多大呢？