air cleaner Books

  • City Limits: Putting the Brakes on Sprawl

    Today, every world region suffers from sprawling, car-choked urban areas. Accidents and pollution-related illness take lives, while traffic delays sap human productivity and waste fuel. Part of the reason that Americans now guzzle 43 percent of the world’s gasoline is to wheel around expansive metropolises. Transportation, spurred by road traffic, is now the fastest-growing contributor to ...

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