‘Cool’ pavement reflects heat and reduces air pollution in hot cities

During the summer months, the streets of sprawling urban areas radiate heat, warming up nearby buildings and increasing air pollution. To cool down the asphalt, Los Angeles is starting to pave the streets with a reflective street surface. Officials say the “cool”, light-grey pavement can drastically lower street temperatures, which helps to cool the insides of buildings, lessen air pollution and reduce the threat of deaths linked to increasingly hotter heat waves.

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