Science, Policy Analysis, and Cause Advocacy

Global warming, or global heating as some now want to call it, is a perfect example of the difference between positivism (the objective application of the scientific method) and advocacy veiled by 'science.' Check out the two following links for two great example of this (the Al Gore v. Michael Chrichton debate):

http://www.shanghaidaily.com/article/?id=305034&type=World

http://voluntaryxchange.typepad.com/voluntaryxchange/2007/01/index.html
under title 'Climatologists are Worried'

I think the top link is a better example of how to be persuasive when writing an analysis.