GreenTracker| US Energy Secretary Steven Chu believes that painting city roofs white can be an important tool in the fight against climate change. While more research must be done, results of a new study by the National Center for Atmospheric Research agrees that he may be correct.
The research is only hypothetical, based on computer models, and it says: if every roof were entirely painted white, the urban heat island effect could be reduced by 33 percent. This would cool the world’s cities by an average of about 0.7 degrees F, with the cooling influence particularly pronounced during the day, especially in summer. via Science Daily