All across the U.S., a growing number of cities are looking for ways to cut costs, with some turning to the environment for savings.
It is no secret that big cities are major contributors to pollution. But now many cities are hoping to alleviate the problem they helped create -- by going green.
For example, the mayor of Chicago hopes to make his city the greenest in the country.
"The cooling properties are really amazing," said Suzanne Malec-McKenna, Chicago commissioner for the Department of Environment. "On a 74 degree overcast day, this side of the roof was 74 degrees, and the black tar side of the roof, which is the county side of the building, is 152 degrees on the same day same temperature."
In New York, there is the Cool Roofs Program where roof tops of big buildings are painted to reflect heat, which helps cut down on cooling costs..
Also, in Los Angeles residents can rent vehicles for a few hours at a time, cutting down on pollution and traffic jams.
Atlanta is going green too by undertaking an ambitious effort to create 22 miles of parks and green spaces.
City leaders say measures like these make a difference on many levels.
"It's great for the environment," Malec-McKenna said. "But it's also great for the other green, which is our bottom line."
Cities that are going green hope to reap the benefits such as better infrastructures and giving their residents a healthier atmosphere. They might even save a little green along the way.
*Originally published October 26, 2009.