March 27 (UPI) -- Half of Americans now see themselves as "concerned believers" in global warming, according to a new Gallup poll.
Fifty percent of respondents in the survey identified themselves as "concerned believers," up from 27 percent in 2015 and 47 percent in 2016. The category of "mixed middle" ranked second, at 31 percent, down from 45 percent in 2012. Those in the category of "cool skeptics" have always been the smallest percentage of the three categories, with 19 percent of the respondents in 2017, down from 26 percent in 2015 and 28 percent in 2016.