mellan fackfolk och bloggare. Här är, förmodligen, den senaste undersökningen som kollat konsensus bland fackfolk:
http://tigger.uic.edu/~pdoran/012009_Doran_final.pdf (Hoppas det är ok att länka till vetenskapliga verk. Annars får admin redigera).
En sammanfattning:
"1. When compared with pre-1800s levels, do you think that mean global temperatures have generally risen, fallen, or remained relatively constant?
2. Do you think human activity is a significant contributing factor in changing mean global temperatures?"
"Results show that overall, 90% of participants answered “risen” to question 1 and 82% answered yes to question 2. In general, as the level of active research and specialization in climate science increases, so does agreement with the two primary questions (Figure 1). In our survey, the most specialized and knowledgeable respondents (with regard to climate
change) are those who listed climate science as their area of expertise and who also have published more than 50% of their recent peer-reviewed papers on the subject of climate change (79 individuals in total). Of these specialists, 96.2% (76 of 79) answered “risen” to question 1 and 97.4% (75 of 77) answered yes to question 2."
"More than 90% of participants had Ph.D.s, and 7% had master’s degrees." Men vad vet de, jämfört med den genomsnittlige bloggaren? Bakåtsträvande, fundamentalistiska domedagsprofeter...