Over the past decade, Americans have clustered into three broad groups on global warming. The largest, currently describing 39% of U.S. adults, are what can be termed “Concerned Believers” — those who attribute global warming to human actions and are worried about it. This is followed by the “Mixed Middle,” at 36%. And one in four Americans — the “Cool Skeptics” — are not worried about global warming much or at all. CONT.
Lydia Saad, Gallup