Pacia Purcell: Current Environmental Thing

“Cooling Down Chicago: How Green and Cool Roofs Could Impact Urban Climate”

engineering.nd.edu

The majority of people today live in cities, and those populations are only growing. The great amount of infrastructure in cities causes there to be an urban heat island, meaning that the temperature in the city is much greater than that of the surrounding rural areas. The University of Notre Dame conducted a study that compared the effects of using non-conventional roofing, and the effects of Lake Michigan on the temperature and air quality of the Chicago. They found that both green roofs and cool roofs had significantly lower temperatures than conventional roofs. They also looked at wind patterns from Lake Michigan to see how they would affect air quality. They concluded that because the temperature of the city is cooled by the green roofs, there will be less of a difference from the incoming cool air from Lake Michigan. This will cause there to be less mixing of the air and may therefore be able to cause air to stagnate close to the surface.

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