With a hat tip to Anthony Watts at Watts Up With That? here is a short video critique of catastrophic man-made global warming theory, based on presentation slides used in a series of public presentations and debates in late 2009 and early 2010. The author is Warren Meyer, author of the web site climate-skeptic.com.
As Watts makes clear:
While the world has almost certainly warmed since the end of the Little Ice Age in the early 19th century, and while it is fairly clear that CO2 and other greenhouse gasses may be responsible for some of this warming, climate alarmists are grossly overestimating the sensitivity of climate to CO2, and thus overestimating future man-made warming.
While the theory of greenhouse gas warming is fairly well understood, most of the warming, and all of the catastrophe, in future forecasts actually comes from a second theory that the Earth’s climate system is dominated by strong positive feedbacks. This second theory is not at all settled and is at the heart of why climate models are greatly over-estimating future warming.
While it dates back over a year we have not linked to this before. It’s well worth a watch, especially as it will make sense to laymen.