Observatoire des droits humains (anglais seulement)

Lighter pavement really does cool cities when it’s done right

(Version anglaise seulement)

par Hessam AzariJafari, Postdoctoral Associate in Engineering, Massachusetts Institute of Technology
Randolph E. Kirchain, Co-Director, MIT Concrete Sustainability Hub, Massachusetts Institute of Technology

When heat waves hit, people start looking for anything that might lower the temperature. One solution is right beneath our feet: pavement.

Think about how hot the soles of your shoes can get when you’re walking on dark pavement or asphalt. A hot street isn’t just hot to touch – it also raises the surrounding air temperature.

Research shows that building lighter-colored, more reflective roads has the potential to lower air temperatures by more than 2.5 degrees Fahrenheit (1.4…

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