Roads are great for allowing us to get from here to there in a quick and safe way. But while they're waiting to serve the next vehicle, they're just lying around idle, making the world warmer with their dark surfaces.
But it doesn't have to be that way. A city in the Netherlands just installed the first bit of road capable of generating electricity: this bike path - of course it's a bike path! - has solar panels embedded in the surface, beneath a protective glass layer.