More Wheels flying off the AGW Gravy Train

Climategate U-turn as scientist at centre of row admits: There has been no global warming since 1995

• Data for vital 'hockey stick graph' has gone missing


• There has been no global warming since 1995


• Warming periods have happened before - but NOT due to man-made changes

The academic at the centre of the ‘Climategate’ affair, whose raw data is crucial to the theory of climate change, has admitted that he has trouble ‘keeping track’ of the information. Colleagues say that the reason Professor Phil Jones has refused Freedom of Information requests is that he may have actually lost the relevant papers. Professor Jones told the BBC yesterday there was truth in the observations of colleagues that he lacked organisational skills, that his office was swamped with piles of paper and that his record keeping is ‘not as good as it should be’. The data is crucial to the famous ‘hockey stick graph’ used by climate change advocates to support the theory.  Professor Jones also conceded the possibility that the world was warmer in medieval times than now – suggesting global warming may not be a man-made phenomenon. And he said that for the past 15 years there has been no ‘statistically significant’ warming.

Read more: Daily Mail and Daily Mail Comment (excerpted below):

"Even more strikingly, he also sounds much less ebullient about the basic theory, admitting that there is little difference between global warming rates in the Nineties and in two previous periods since 1860 and accepting that from 1995 to now there has been no statistically significant warming. He also leaves open the possibility, long resisted by climate change activists, that the ‘Medieval Warm Period’ from 800 to 1300 AD, and thought by many experts to be warmer than the present period, could have encompassed the entire globe. This is an amazing retreat, since if it was both global and warmer, the green movement’s argument that our current position is ‘unprecedented’ would collapse."

and from The Times Online (UK):

World may not be warming, say scientists

The United Nations climate panel faces a new challenge with scientists casting doubt on its claim that global temperatures are rising inexorably because of human pollution. In its last assessment the Intergovernmental Panel on Climate Change (IPCC) said the evidence that the world was warming was “unequivocal”.It warned that greenhouse gases had already heated the world by 0.7C and that there could be 5C-6C more warming by 2100, with devastating impacts on humanity and wildlife. However, new research, including work by British scientists, is casting doubt on such claims. Some even suggest the world may not be warming much at all. “The temperature records cannot be relied on as indicators of global change,” said John Christy, professor of atmospheric science at the University of Alabama in Huntsville, a former lead author on the IPCC.

The doubts of Christy and a number of other researchers focus on the thousands of weather stations around the world, which have been used to collect temperature data over the past 150 years.These stations, they believe, have been seriously compromised by factors such as urbanisation, changes in land use and, in many cases, being moved from site to site. Christy has published research papers looking at these effects in three different regions: east Africa, and the American states of California and Alabama.

“The story is the same for each one,” he said. “The popular data sets show a lot of warming but the apparent temperature rise was actually caused by local factors affecting the weather stations, such as land development.”

The IPCC faces similar criticisms from Ross McKitrick, professor of economics at the University of Guelph, Canada, who was invited by the panel to review its last report. The experience turned him into a strong critic and he has since published a research paper questioning its methods. “We concluded, with overwhelming statistical significance, that the IPCC’s climate data are contaminated with surface effects from industrialisation and data quality problems. These add up to a large warming bias,” he said.

Such warnings are supported by a study of US weather stations co-written by Anthony Watts, an American meteorologist and climate change sceptic.

His study, which has not been peer reviewed, is illustrated with photographs of weather stations in locations where their readings are distorted by heat-generating equipment.

Some are next to air- conditioning units or are on waste treatment plants. One of the most infamous shows a weather station next to a waste incinerator.

Watts has also found examples overseas, such as the weather station at Rome airport, which catches the hot exhaust fumes emitted by taxiing jets.

In Britain, a weather station at Manchester airport was built when the surrounding land was mainly fields but is now surrounded by heat-generating buildings.

Terry Mills, professor of applied statistics and econometrics at Loughborough University, looked at the same data as the IPCC. He found that the warming trend it reported over the past 30 years or so was just as likely to be due to random fluctuations as to the impacts of greenhouse gases. Mills’s findings are to be published in Climatic Change, an environmental journal.

“The earth has gone through warming spells like these at least twice before in the last 1,000 years,” he said.

Kevin Trenberth, a lead author of the chapter of the IPCC report that deals with the observed temperature changes, said he accepted there were problems with the global thermometer record but these had been accounted for in the final report.

“It’s not just temperature rises that tell us the world is warming,” he said. “We also have physical changes like the fact that sea levels have risen around five inches since 1972, the Arctic icecap has declined by 40% and snow cover in the northern hemisphere has declined.”

The European Centre for Medium-Range Weather Forecasts has recently issued a new set of global temperature readings covering the past 30 years, with thermometer readings augmented by satellite data.

Dr Vicky Pope, head of climate change advice at the Met Office, said: “This new set of data confirms the trend towards rising global temperatures and suggest that, if anything, the world is warming even more quickly than we had thought.”

Surface temperature records: policy driven deception? - a report by Joseph D’Aleo and Anthony Watts



And see Phil Jones Still Has More Reflecting To Do and So Jones Lost the Data? It Was Worthless, Anyway