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Entry: A Matter of Degrees Link: http://www.takimag.com/blogs/article/a_matter_of_degrees#16433 Post contents: Kari "The reason for silencing the tree-line record is obvious: it shows large changes in the recent past, when there was no change in carbon dioxide." There is no conspiracy of silence. Scientists are well aware that there have been dramatic changes in climate in the past. The point that you don't appear to understand is that the current changes are unprecedented in the RAPIDITY with which they are taking place. "Somehow “global” warming seems to be limited to northern hemisphere." Not true. We have seen dramatic changes in various climate indicators, associated with global warming, in southern Australia over the past 30 years. For example, inflows to Perth dams over the past 30 years have been approximately half historical levels, and over the last few years inflows are about a third of previous levels. Sent at: 2009 01 08