..... Where in this poll is the part that humans are the cause? oh right...
"By contrast, 84% of scientists say the earth is warming because of human activity.....
Note this kind of clever double talk does not advance any realistic understanding.
For example, a scientist would answer YES if he thought the effect of humans was 0.001C in a hundred years, or YES if he thought the effect of humans was 2.000C in a hundred years.
Essentially, this is lying using a survey, and just another example of the politicalization of science.