The Motley Fool Discussion Boards

Previous Page

Religion & Culture / Atheist Fools

URL:  http://boards.fool.com/every-black-roof-in-new-york-should-be-white-30303241.aspx

Subject:  Re: Lost jobs, looking at wrong thing? Date:  10/5/2012  8:23 PM
Author:  DrBob2 Number:  410479 of 445765

Every black roof in New York should be white; every roof in Chicago should be white; every roof in Little Rock should be white. Every flat tar-surface roof anywhere!

But not in the desert.

https://asunews.asu.edu/20120907_urbanheat_tradeoffs
Among the most practical ways to combat urbanization-induced warming – the painting of buildings' roofs white – was found to disrupt regional hydroclimate, highlighting the need for evaluation of tradeoffs associated with combating urban heat islands (UHI)....

“However, increased reflectivity also modifies hydroclimatic processes and, in the case of the ‘Sun Corridor,’ can lead to a significant reduction of rainfall. Our maximum Sun Corridor expansion scenario leads to a 12 percent reduction in rainfall, averaged across the entire state. Painting roofs white leads to an additional 4 percent reduction in rainfall.”

DB2
Copyright 1996-2014 trademark and the "Fool" logo is a trademark of The Motley Fool, Inc. Contact Us