Color-changing roof tiles absorb heat in winter, reflect it in summer

#Technology

Sat, Oct 24th, 2009 06:36 by capnasty NEWS

U.S. Secretary of Energy Steven Chu says that turning all the world's roofs white would eliminate as much greenhouse gas emissions in 20 years as the whole world produces in a year.

  638

 

You may also be interested in:

Cyberdyne To Be Mass Producing $4,200 HAL Robotic Suit
The Calculator Reference Page
The Commodore 64 vs. the iPhone 3G S: The Ultimate Showdown
Happy New Year
Botnet 'ensnares government PCs'