Big Changes for Big Rig Emissions on PA Roads
Posted at http://www.publicnewsservice.org/2016-08-23/climate-change-air-quality/big-changes-for-big-rig-emissions-on-pa-roads/a53681-1 August 23, 2016 – Mary Kuhlman, Public News Service (PA) Play Audio in Browser Window Semi trucks traveling across Pennsylvania will soon have to include improved carbon-emissions technology. (Tony Webster/flickr.com) HARRISBURG, Pa. – Pennsylvania drivers have to … Continued