Excerpts from the three part series below. A significant amount of evidence indicates that the global temperature did increase during the 20th century. For example, direct thermometer measurements indicate that the temperature increased by perhaps 0.8°C. ... In summary, there is no direct evidence showing that CO2 caused the 20th century warming, or as a matter of fact, any warming. The question to ask is therefore can we point to some other culprit? If humans are not the only ones responsible Read more [...] 6 com

Ken Stewart has released his much awaited review of the Australian High Quality Sites. His conclusion: The High Quality data does NOT give an accurate record of Australian temperatures over the last 100 years. BOM has produced a climate record that can only be described as a guess. The best we can say about Australian temperature trends over the last 100 years is “Temperatures have gone down and up where we have good enough records, but we don’t know enough.” If Anthropogenic Read more [...] 4 com

Validation of climate models is like finding someone to cement your drive. You ask one contractor, and they say they can do it, sometime between now and Christmas. That’s a high level of uncertainty. You ask another, and they say they can do it, but it’s their first time. That’s a low level of skill. You ask another, and they say that they will do it, but the result is not going to be any better than what you have already, or may even be worst. That’s an honest vendor, Read more [...] 34 com

As I write this, my wife of 46 years is in intensive care fighting to live. She is there partly because of bad medical science and partly because of what had become a widespread syndrome in many scientific disciplines, the demonization of a person or a concept by people who can be wrong. My wife does not provide the best example of demonization, but it is current, motivational and recent and on my mind. Please excuse me if I become too personal. The important part is not the personal part. It is Read more [...] 30 com

The Age reports that Climategate was a game changer. Judith Curry said Dr Jones had shown himself to be ''genuinely repentant, and has been completely open and honest about what has been done and why … speaking with humility about the uncertainty in the data sets''. So far its a case of the academic defense: "Oops, I lied." Sir Muir Russell, the chairman of the Judicial Appointments Board for Scotland, notes that senior climate scientists say their world has been dramatically changed by Read more [...] 8 com