Green and cool roofs provide relief for hot cities, but should be sited carefully
- Written by Ashish Sharma, Post-doctoral researcher, University of Notre Dame
Reflective roof and skylights on a Walmart store, Las Vegas, NVWalmart/Flickr, CC BYMore than half of the world’s population lives in cities, and the United Nations projects that this share will rise to 70 percent by 2050. During the daytime, these expanding urban areas absorb more solar energy than the surrounding countryside. At night they...
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