Bob's blog - the realm of threalm

Dr David Evans, formerly a full time consultant to the Australian Greenhouse Office and a PhD from Stanford, has written a brief Skeptics Case which was been republished recently on WUWT . It is a succinct and well argued case essentially making many very similiar, if not identical, points to those made by Professor Richard Lindzen in his presentation to Westminster about the exaggeration of CO 2 forcings in the CAGW climate models. Here's Dr Evan's take: ... This is an unusual political issue, because there is a right and a wrong answer and everyone will know which it is eventually. People are going ahead and emitting CO2 anyway, so we are doing the experiment: either the world heats up by several degrees by 2050, or it doesn’t. Notice that the skeptics agree with the government climate scientists about the direct effect of CO2; they just disagree just about the feedbacks. The climate debate is all about the feedbacks; everything else is merely a sideshow. Yet hardl...

What's Up With That has directed me to a  tutorial in physics and science contained in a comment by Professor Robert Brown of the Duke University Physics department on a post on WUWT about Climate Science and Special Relativity . I enjoyed Professor Brown's post as much for its excellent exegesis on the nature of scientific certainty in physics ,as for its application of scientific principle to the Catastrophic Anthropogenic Global Warming theory. This is Professor Brown's take: You compare the predictions of their “catastrophic” theory five, ten, twenty years back to the actual data . If there is good agreement, it is at least possible that they are correct. The greater the deviation between observed reality and their predictions, the more likely it is that their result is at least incorrect if not actual bullshit. That’s all. Accurately predicting the future isn’t proof that they are right, but failing to predict it is pretty strong evid...

Professor Richard S. Lindzen of the Program in Atmospheres, Oceans, and Climate at the Massachusetts Institute of Technology, gave a seminar to the House of Commons Committee Rooms in Westminster, London on 22 February 2012. Here is the link to the PDF of the slides he used at that seminar. There are many interesting quotes from these slides. This is one which took my fancy: “Future generations will wonder in bemused amazement that the early 21st century’s developed world went into hysterical panic over a globally averaged temperature increase of a few tenths of a degree, and, on the basis of gross exaggerations of highly uncertain computer projections combined into implausible chains of inference, proceeded to contemplate a roll-back of the industrial age.” Of the many new things I learnt from this, one is a better understanding of the importance of the scale of the attributed amplification effect of "forcings" from alleged positive feedbacks on the am...