CHAPEL HILL, N.C.—On a Friday afternoon in mid-January, college students hugged themselves as they lumbered through the University of North Carolina campus. Temperatures teetered just above freezing. Snow would soon skitter in from the west.  A half-mile from campus on West Cameron Avenue and overlooking two historically black neighborhoods, several drab apartment complexes and quaint … Continue reading To Reduce its Carbon Footprint, UNC Could Burn Pellets Composed of Paper and Plastic