There was a report of a survey of American Meteorological Society (AMS) members published a couple of years ago, which deniers touted quite a bit. It showed that the least well-informed about climate science were also the least likely to accept that humans are causing global warming. Just released are the initial results of another survey of AMS members by some of the same researchers. It's not exactly a repeat, but the questions are not dissimilar. They are close enough for a comparison I believe. There's been a shift toward understanding climate science among AMS members since the first survey was conducted.
The first thing I noticed was that participation in the survey more than doubled this time around. There was a very good response rate from AMS members with 4,092 responding to this years' survey compared to 1,854 in 2014:
The next thing I noticed was that there was a jump in the proportion of respondents who agreed that global warming (from any cause) is happening, up from 88% in 2014 to 96% this year:
Then there was also a jump in the proportion who attributed global warming mostly to human activity and a big reduction in the number who said they don't know what's the cause of the warming. This is where the latest survey had an improvement on the question, so the responses aren't strictly comparable. I've squeezed them into categories to give you an idea of the shift:
The actual questions and responses for the 2016 survey are shown below. The big improvement is that the question is timebound, not open to many and varied interpretations, which was one of the concerns with the previous survey:
There are more nuanced and detailed questions in the survey, which you can download here. This includes questions about mitigation, and questions on the shift in thinking of AMS members over the past couple of years. Eighty seven per cent (87%) of the 17% who had changed their thinking said they were now more convinced that human-caused climate change is happening. Thirteen per cent were less convinced.
The next time some denier quotes the old AMS survey results at you, you can now point them to this latest one showing that a not insignificant number of AMS members have learnt something more about climate change in the past couple of years.
References and further reading
Stenhouse, Neil, Edward Maibach, Sara Cobb, Ray Ban, Andrea Bleistein, Paul Croft, Eugene Bierly, Keith Seitter, Gary Rasmussen, and Anthony Leiserowitz. "Meteorologists' views about global warming: A survey of American Meteorological Society professional members." Bulletin of the American Meteorological Society 95, no. 7 (2014): 1029-1040. DOI: http://dx.doi.org/10.1175/BAMS-D-13-00091.1 (open access)
Maibach, E., Perkins, D., Francis, Z., Myers, T., Englbom, A., et al. (2016) A 2016 National Survey of American Meteorological Society Member Views on Climate Change: Initial Findings. George Mason University, Fairfax, VA: Center for Climate Change Communication. (pdf here)