Photo of self-lighting tile credit copyright Pavegen systems twitpic . Sidewalks – we use ‘em everyday. Which is why there’s no end to the innovative ideas for making sidewalks work for us. Using piezoelectric, (also called kinetic energy) has been mostly confined to the novelty of the dance floor . That’s mainly for

cost and efficiency reasons. A new spate of projects coming this year, however, both with piezo technology as well as other innovations may make it worth a look at cities that are harne… Read the full story on TreeHugger

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Six Sidewalks That Work While You Walk