U.S. worry about global warming is heading back up after several years of expanded public skepticism. Views on the subject are now near the midpoint in Gallup trends, exemplified by the 58% of Americans who say they worry a great deal or fair amount about global warming. This is up from 51% in 2011 but still below the 62% to 72% levels seen in earlier years. [cont.]
Lydia Saad, Gallup