Became:
The following passages are examples of those included in the approved report but deleted from the supposedly peer-reviewed published version:
-- "None of the studies cited above has shown clear evidence that we can attribute the observed [climate] changes to the specific cause of increases in greenhouse gasses."
-- "No study to date has positively attributed all or part [of the climate change observed to date] to anthropogenic [man-made] causes."
-- "Any claims of positive detection of significant climate change are likely to remain controversial until uncertainties in the total natural variability of the climate system are reduced."The reviewing scientists used this original language to keep themselves and the IPCC honest. I am in no position to know who made the major changes in Chapter 8; but the report's lead author, Benjamin D. Santer, must presumably take the major responsibility.