Painting city streets with a light-coloured, reflective coating can cool the asphalt underneath, but it can also increase heat exposure for people walking on the road. That unexpected trade-off emerged from a major trial in the American Southwest.

Explore Phoenix's innovative Cool Pavement initiative that reduced surface temperatures but increased heat exposure for pedestrians. Discover the pros and cons of this reflective…

Painting city streets with a light-coloured, reflective coating can cool the asphalt underneath, but it can also increase heat exposure for people walking on the road. That…