Green Roofs:
Using Roofs for More Than Keeping Dry

Mayor Richard Daley saw his first planted roofs several years ago while visiting Chicago’s sister city of Hamburg, Germany. At the same time, he was learning about urban heat islands (in which our urban areas maintain temperatures considerably higher than surrounding suburban and rural areas). He was particularly attuned to the urban heat island problem because a few years earlier, several dozen elderly residents had died during a Chicago heat wave. Perhaps because of that situation, Chicago had been selected by the U.S. Environmental Protection Agency (EPA) as one of five cities for urban heat island pilot projects.

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