After three years of decline, greenhouse-gas emissions are rising again, largely because of increased coal use. The best chance for the industry to erase its 'dirty coal' image is through carbon capture, which is making progress.
An investigation is underway to determine what caused a New Haven-bound train to collide with a New York City-bound train in Connecticut on Friday night. Dozens were hospitalized following the crash on what is the busiest rail line in America, serving 125,000 commuters daily.
Huge numbers of cicadas, the large black insects that produce a eerie loud noise when mating, are on the verge of emerging after a 17-year underground development cycle. They are expected to surface late this month.