Pavement technology could cool cities from the ground up

  • A City of Phoenix Street Transportation Department crew sprays light-colored pavement over blacktop on a street in the Garfield District of Phoenix on Aug. 11, 2020. A team from Arizona State University is working with the city of Phoenix on a pilot program studying the use of “cool pavement” to reduce heat island effect, a phenomenon that raises temperatures in urban areas covered by asphalt and concrete. (City of Phoenix via AP)

PHOENIX — Sunbathers understand the benefits of applying sunscreen, but in America’s hottest big city the same concept is being tested at street level in the hope of bringing some lasting relief from the relentless Arizona sun.

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