How one group is using a very low-tech tool to fight N.J. air pollution

NJ.com: "But activists say the issue has taken on added significance in recent years with port volumes steadily increasing as the economy recovers, and with the anticipated long-term growth of the port thanks to an ongoing project to raise the Bayonne Bridge roadway. Raising the roadway is intended to let the largest generation of container ships access terminals in Newark and Elizabeth, once the huge vessels begin traveling directly to the East Coast from Asia following completion of a Panama Canal expansion next year"