The survey "CLISCI2008" among climate scientists has been used to examine the terminology concerning two key concepts in climate science, namely, predictions and projections, as used among climate scientists.
Established guidelines (e.g., by the Intergovernmental Panel on Climate Change) define predictions as probable developments, and projections as possible developments. The survey data suggest that this terminology is not adopted, or only loosely adopted, by a significant minority of scientists - approximately 29% of the respondents falsely associate probable developments (i.e., predictions) with projections, and approximately 20% of the respondents falsely associate possible developments (i.e., projections) with predictions.
The survey CliSci2008-survey has been mentioned before on this weblog.
The full article has been published here:
Bray, D., and H. von Storch, 2009: 'Prediction' or 'Projection'? The nomenclature of climate science. Science Communication 30, 534-543, doi:10.1177/1075547009333698
(If you do not have access to the journal, ask Hans von Storch for a copy)