An old political saying is that: Facts are facts, butperceptions are reality. In the world of climate predictions it is so hard to separate fact from fact and factfrom fiction that many observers substitute perceptionsfor reality. Major sources of facts in the area of climatechange are the three IPPC Reports (1990, 1996, and2001). Despite being a mine of extremely usefulinformation, these reports are difficult to use because ofthe innumerable assumptions made by each strand of theoverall story line. In other words, due to the cascading ofassumptions the facts become hard to distinguish fromfiction.
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