Births and birth rates dropped to a 30-year low, not an issue of concern yet, but if the trend continues, the U.S. could join other developed nations that must deal with the consequences of an aging population. Immigration plays an uncertain factor.
Two bills target hybrid and electric vehicles and even fuel efficient vehicles with new registration fees to increase road funding, as nine states did last year. However, many of those states also hiked gas taxes in the same legislation.
Driven by student activism and less idealistic motivations for improving energy efficiency, college campuses across the Unites States are pioneering 'innovative approaches to rethinking energy infrastructure'.