I am very disapointed in his response. He writes:
For the two groups, the ‘sceptics’ and the ‘saviours’ there seems to have been equal access. If any one knows of other postings I would be interested to note how far the survey was distributed. The purpose of the survey was to attempt to gain an objective view of the state of the science not to provide fodder any camp of activists, but no measurement instrument (survey) is prefect, in any science.
While no study is perfect, this study is so imperfect as to be useless. Since it was posted on the climatesceptics list, the sample is not representative. As a social scientist Bray should know this.