[Copernicus]

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1. He looks like kind of silly
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In the modern world, science and society often interact in a perverse way. We live in a technological society, and technology causes political problems. The politicians and the public expect science to provide answers to the problems. Scientific experts are paid and encouraged to provide answers. The public does not have much use for a scientist who says, “Sorry, but we don’t know”. The public prefers to listen to scientists who give confident answers to questions and make confident predictions of what will happen as a result of human activities. So it happens that the experts who talk publicly about politically contentious questions tend to speak more clearly than they think.

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Anyone who's actually read the IPCC report (which is very few of the deniers), will realize that it's a non contentious document based on error ranges and levels of confidence. There are no: "this is what's going to happen". There are terms like "likely", "more likely than not", "very likely", representing percentage ranges of possible outcomes. There is a quantification of level of understanding with associated (very generous) error intervals. It is within these bounds that the comments about likely warming and likely causes are made, and I find them rigorous.

So this clown is just doing some political spin.

And what's up with this statment?
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First, if the increase of carbon dioxide in the atmosphere is allowed to continue, shall we arrive at a climate similar to the climate of six thousand years ago when the Sahara was wet? Second, if we could choose between the climate of today with a dry Sahara and the climate of six thousand years ago with a wet Sahara, should we prefer the climate of today? My second heresy answers yes to the first question and no to the second.

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In the first he seems to be agreeing that carbon dioxide will warm the atmosphere. In the second, he presents a false scenario - the indications are that global warming will intensify desertification in the Saharan region, NOT make it wet. So it's an irrelevant choice.

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LOL, this "clown" is a genius of the first order.