WBUR By Martha Bebinger
October 24, 2022
On a typical summer day, it might be 10-12 degrees cooler in leafy sections of Boston than it is downtown, because unshaded pavement and roofs absorb and radiate so much heat.
Reducing pavement or making it more reflective are strategies more communities must adopt to help cool cities, experts say, and slow global warming. One of the dire challenges with pavement is how much heat it radiates at night.
“It’s this inability to cool down at night that leads to some of the worst health effects,” says Carly Ziter, an associate professor of biology at Concordia University in Montreal.
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