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The many applications for cool pavement technologies

This is Science Today. In an effort to combat urban heat islands, in which areas with a lot dark pavement absorb a significant amount of sunlight and drive up temperatures, scientists are studying cool pavement technologies. Researcher Benjamin Mandel of the Lawrence Berkeley National Laboratory explains that conventional pavements are usually made of dark asphalt, but what they're looking to do is at least increase the reflectance of these surfaces by making the color lighter.

Mandel:          So, whether that's mixing some white into the product or starting out with a different color to begin with or in the form of maybe a coating, you can make cool pavement solutions that should fit any need.

Narrator:        Mandel is part of the Lab's Heat Island Group that is studying and testing a variety of cool pavement technologies to determine what works best.

Mandel:          We envision cool pavements as a potential solution for many applications. This can be city streets, it can be community streets, driveways and an interesting application that we're actively promoting is actually cool schoolyards.

Narrator:        For Science Today, I'm Larissa Branin.