NPR Science Friday Talks About Pervious Concrete

Thanks to Chris Estes for letting us know about this.

 http://www.wbur.org/media-player?url=http://www.wbur.org/npr/137397969/creating-reservoirs-under-roads-and-parking-lots&title=Creating%20Reservoirs%20Under%20Roads%20And%20Parking%20Lots