Building the future

Hi everybody,

I want to share one interesting video about the ecopolicy(actully it is Discovery Channel series).
It named "Building the Future".There are 4 different technologies which can increase the carbon saving of the building.
You can choose the part you are interested in.

1.start from 2:00
A new material which can avert the heat waste--Air Gel

2.start from 11:45
Light up world building in future--Fiber

3.start from 22:10
Urban heat island?--Green Roof(This is the most interesting part for me)

4.start from 29:10
Building can self powered--Photovoltaic


Let us see how to make the low carbon future~~
http://v.youku.com/v_show/id_XOTc3NzY5ODA=.html
(sorry about the Chinese subtitle,I can't sweep it away)

Hope you enjoy it. ^-^