To: Lou Weed who wrote (252532 ) 12/28/2007 4:18:26 PM From: J. C. Dithers Read Replies (1) | Respond to of 281500 I still don't get it about the difference in our quotes, but let's let it go. My views of science are informed by Kuhn's "The Structure of Scientific Revolutions," which holds that scientific discovery does not progress steadily and orderly, but rather between periods of normalcy and crisis. Radical theories such as "relativity" or "the big bang" disrupt normal science and throw disciplines into crisis and chaos. It is at these times that the "scientific establishment" becomes fiercely defensive of the currently accepted paradigm system and resistent to the new theory. I agree with you about politics affecting science, and so do prevailing social values. The result is that objective and impartial "truth" is lost sight of. IMO, GW is hopelessly entangled in all of this -- to the point where we cannot know who to believe, least of all the scientists themselves who may have heavily vested interests on one side or the other. There are few if any climate scientists participating on SI, and so we see a lot of scientific mumbo-jumbo being cited here by people who have no credentials to evaluate it, or understand it, and who only post what seems to support their preconceived beliefs (which have nothing to do with science). I don't dispute that we MAY be in a period of global warming -- perhaps over 30 years, or perhaps 100 years. After all, earth's history is nothing if not alternating periods of warm and cold. Ice ages come and go, and so do warming periods. You and I are on the planet for a very short time and our brief lives may coincide with a very slight warming trend. For any one of us, our lives would probably be much too short to even notice such gradual climate change over our lifetimes. Humans have been on earth for only a tiny fraction of the dinosaur reign. Certainly our days are numbered. Our world population keeps increasing, and there must come a point when the surface of the planet will not be able to sustain our existence. Of course, we could be gone before that point if an asteroid or comet impact renders earth uninhabitable for humans, like the one nearing Mars right now. It's all pretty much a matter of chance. In short, we have a lot to worry about, if we choose. At this point, global warming is not in the top ten for me. I would rather see our resources used to fix things we know we CAN fix, and I don't see "climate" as one of those. JC