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Jennifer Marohasy

Jennifer Marohasy

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Climate & Climate Change

The Minority is Always Right

June 28, 2015 By jennifer

THANK YOU to everyone who heard Maria Pita and sent a letter off to their favorite politician or editor, or made comment in the long thread online at The Australian, highlighting the many inadequacies in the recent report by the Technical Advisory Forum into the homogenization of historical temperature data by the Australian Bureau of Meteorology.

I've been travelling, and reading my Kindle, including a great book by Christopher Booker.
I’ve been travelling, and reading my Kindle, including a great book by Christopher Booker.

I haven’t seen any of the many letters copied to me over the last week published anywhere, but sometimes it takes time for the majority to see that The Emperor really has no clothes. This realization can sometimes be hastened when we point out the missing detail, for example, I like the following letter sent to Bob Baldwin by Peter Rees of Geelong.

Sir,

While there are some encouraging recommendations from the Bureau of Meteorology (BOM)’s Technical Advisory Forum, it is extremely frustrating that they haven’t mentioned anything about the BOM providing FULL details of why they altered stations like Rutherglen so dramatically.

The 1973 minimum temperature was reduced by 0.5 Degrees C and working backwards increased this until there was a massive 1.8 Degrees C reduction between the recorded and homogenized temperatures in 1913.

This changed a slightly cooling trend to a warming trend and the BOM refuse to provide detailed information on why it was done.

I quote from Dr J. Marohasy:
“The Bureau has provided information at its website suggesting that there was a need to make adjustments to Rutherglen for the period prior to 1966 and that this “was determined from an objective statistical test that showed an artificial jump in the data during this period.” But what was the statistical test actually performed on the data? Why is this not documented? The raw temperature record for Rutherglen has a virtually identical trend to its six neighbouring comparison sites, while the homogenized ACORN-SAT temperature series for Rutherglen is strongly biased towards warming”

If the BOM are not compelled to provide this information then the question has to be asked, why not? If they have valid reasons for the “objective statistical test”, then surely it would be in everyone’s interest if it were made known.

It is surely within your authority that you instruct the advisory committee do this or else add it to the terms of reference.

I would appreciate a reply to this email and please specifically address the Rutherglen issue with your comments on why or why not it should be addressed.

Regards, Peter Rees, Geelong

HAVING been traveling for the last month or so, I’ve had an opportunity to spend more time than usual reading my Kindle. I have particularly enjoyed reading ‘The Seven Basic Plots: Why We Tell Stories’ by Christopher Booker.

Christopher Booker is perhaps better known to us as the columnist for The Sunday Telegraph who writes about how future generations will look back on the global-warming scare with shock at both how gullible the general public were, and how the official temperature records were systematically “adjusted” to show the Earth having warmed much more than actually justified by the data. He’s also written about story telling more generally, and from a Jungian perspective. Let me reproduce some pages from this book, so relevant to the problem of getting the alternative perspective heard:

THE RULING CONSCIOUSNESS

The real problem with the ego, as the only part of our psyche through which we can be conscious of the world, is that it is so structured that its awareness must always be limited. However much we may try to eliminate its distortions and to dissolve its conflict with the objective unconscious, some element of subjective distortion and blindness must inevitably remain. And just as this applies to the consciousness of the individual ego, so it equally applies to that collective consciousness which tends to develop in any human group or society. Of course no group of human beings can establish a single, undifferentiated consciousness, through which each member of the group views the world in exactly the same way. But in any group or society it is possible to discern certain prevailing tendencies of view, even if the views of a minority of members of the group may conflict with them. Groups of human beings develop a sense of common identity, shared values, shared assumptions of what they believe to be true or important. And in this respect they develop a collective ego-consciousness.

We see this most obviously when they are swept up in some great shared emotion, as in the collective state of hysteria which grips a crowd at a football match or the sense of collective unity associated with times of war. But in any group it is possible to discern what may be called its ruling state of consciousness: that which determines what views, values and behaviour are at any time generally considered acceptable, and those which are regarded as beyond the pale, condemned as disruptive, eccentric, alien or mad. And one has only to consider what extraordinary changes come over the state of consciousness prevailing in any society through different times in history (the dramatic variations in what is considered acceptable that we see in everything from patterns of moral behaviour to fashions in clothes) to see that there cannot be any time when the ruling consciousness is objectively right, by some absolute standard, in everything it holds to be important or true.

It is naturally easiest to appreciate this in societies where the prevaling consciousness is furthest removed from our own. Until the fifteenth and sixteenth centuries, for instance, the ruling consciousness decreed that the earth was flat and that the sun went round xanax it. To challenge that consciousness, even though it had no basis in fact, was virtually unthinkable. As the old song had it, `They all laughed at Christopher Columbus, when he said the world was round’.

For challenging the received wisdom that it was the sun which moved while the earth stood still, Galileo faced such duress from the Papal inquisition that publicly he conceded the point (even though, as he did so, he was said to have muttered under his breath `but it still moves’).
We may today laugh knowledgeably at the blindness and arrogance of those inquisitors, because we have inherited the new prevailing wisdom which Galileo helped to shape; just as we may express moral outrage at all those who became rich from the eighteenth-century slave trade in the days before moral perceptions changed and the inhuman cruelty of the slave-system became obvious for all to see. But what we may not recognise is just how many firmly-held convictions making up the prevailing consciousness of our own time are just as ill-founded as the belief in a flat earth or the social acceptability of slavery: because the point about any state of ruling consciousness is that it is based on unconscious assumptions so deep and all-pervading that they are taken for granted. In any society, organisation or group, the unconscious psychological pressure to accept those assumptions is so great that only a few outsiders have the clarity of vision to perceive from `below the line’ how baseless and unjustified they are.

In fact the ruling consciousness of any group with a sense of common identity provides an exact parallel to the state of consciousness in individual human beings. Because it is centred on a collective ego, it can exhibit precisely the same tendency to distortion and subjectivity that we see in human individuals. As we see in, say, a political party, there will thus be a significant element of unconsciousness in the way that group behaves, whereby it remains collectively unaware of its own deficiencies. Just as we see in an individual, the more one-sided the ruling consciousness becomes, the greater the area of shadow its one-sidedness creates. And the denser those shadows, the more we are likely to find within them people who represent those values and that wider awareness which, `above the line, in the ruling consciousness, have gone missing.

It was his perception of this psychological characteristic of human groups which Ibsen summarised in those words from An Enemy of the People quoted at the head of this chapter: `the majority is always wrong’ and `the minority is always right’. This is an observation which on the face of it might seem perverse, contrary to common sense, inviting the ridicule of all received opinion. But it is precisely `received opinion, the ruling consciousness, which by definition can never grasp the subtle truth of the point Ibsen was trying to make. He is not of course saying that whenever the majority of the human race agree on something they must in all cases be wrong. Most people accept, for instance, that it is undesirable for human beings to go around killing each other. They are not misguided in this belief just because they are a majority. There are many issues on which the majority of people hold similar beliefs and are right to do so. But at any given time, in any human group, large or small, there will be a generally prevailing state of consciousness which in very significant respects will be blind; which will be unable to see the world objectively. It is in this sense that, as Ibsen put it, the `majority, the ruling consciousness, is always wrong. And there should be nothing particularly surprising about this, since it is self-evident that in any collection of human beings there will be only a minority who have achieved that degree of self-understanding which can allow them to see the world without their perception being in some way fogged or skewed by unconscious subjectivity.

********************

Filed Under: Good Causes, Philosophy Tagged With: Climate & Climate Change, Temperatures

Survey Denying My Position on Climate Change

April 21, 2015 By jennifer

ACCORDING to those who define popular culture, prominent sceptics like myself deny the reality of climate change.   It’s a convenient argument for the activist, and its repeated in a survey I just received today from academic Raymond Orr, University of Melbourne.  According to the preamble to the survey, prominent sceptics like myself “are doubtful that climate change is occurring”.    The first question then includes the following statements:

Q1 How would you describe your climate change beliefs:
a. I don’t believe climate change is occurring
c. I don’t believe we can know climate change is occurring
d. I believe in climate change but don’t believe it is caused by humans
e. I believe in climate change but don’t believe government should address climate change
f. I believe in climate change but don’t think there is anything we can do about it
g. Other

***

If the survey is intended to characterize the position of prominent sceptics like myself, then a more useful set of first statements might include:

Q1 How would you describe your climate change beliefs:

a. I don’t believe climate change is occurring
b. I believe climate change is occurring, and is predominantly natural in origin
c. I believe climate change is occurring, and is predominantly anthropogenic in origin

***

Following is the text of the email from Dr Orr follows, and also my reply:

Dear Ms. Marohasy,

My name is Raymond Orr and my colleague Anne Kallies had contacted you at the end of last year regarding the possibility of your participating in a short study on climate change attitudes. We had intended to conduct the survey in person but have moved to an online format. If you are still willing, your participating would be very much appreciated and would only take between 10-15 minutes. Your participation is kept entirely confidential.

The project is comparative research project on climate change attitudes conducted with my colleague Professor Robyn Eckersley from the School of Social and Political Sciences at the University of Melbourne. The purpose of the study is to identify and compare how much variability exists in the attitudes of prominent people in Australia and the United States who publicly identify as climate sceptics. A more detailed explanation of the project is provided in the attached Plain Language Statement.

I am writing to seek your permission to participate in the study because you are a prominent person in Australia who has publicly questioned the science of climate change or the need for action on climate change.

Participation is entirely voluntary and you will be free to withdraw at any stage.  Your anonymity will be completely protected and you will be entitled to receive, upon request, any published research or conference papers resulting from the study. The study has been approved by the University of Melbourne’s Human Research Ethics Committee.

Participation in the study will require you to sort a series of statements according to how much you agree with them (technically known as a Q-sort) and answering short follow up questions.  The survey is online and can be found by clicking on or pasting this link  [redacted].

If you have any questions about the project then please do not hesitate to contact Dr Raymond Orr [redacted]. Thank you in advance for your participation.

Sincerely,

Raymond Orr, PhD, School of Social and Political Sciences, University of Melbourne

My reply…

Hi Raymond

Thank you for your email.  I had been prepared to participate in your survey, but in the first question you show a total ignorance of what is disputed in the science, and the position of prominent sceptics.

There is no denial that climate change is part and parcel of life on earth.   It is always occurring.  Indeed, we are about 10,000 years into the Holocene warm period, and about 150 years out of a mini-ice age.   I know of no prominent sceptic in Australia or America who denies such realities.  Indeed most take a great interest in the history of climate change both in geological time, and from the tree rings, and more recent instrumental record.

Indeed, can you send me the name/details of any one prominent sceptic in Australia or the US who denies that the climate changes and/or shows no interest in measurement of the same?

At issue is the extent of the human contribution to the observable late 20thy Century warming in places like Australia, and whether we have catastrophic global warming.   My position, like that of most sceptics, is that the recent warming in Australia unremarkable.   Furthermore, we are more likely to attribute it to nature causes as detailed in the attached scientific publication by Nicola Scafetta from the Journal of Atmospheric and Solar-Terrestrial Physics.

The abstract reads:  “We investigate whether or not the decadal and multi-decadal climate oscillations have an astronomical origin. Several global surface temperature records since 1850 and records deduced from the orbits of the planets present very similar power spectra. Eleven frequencies with period between 5 and 100 years closely correspond in the two records. Among them, large climate oscillations with peak-to-trough amplitude of about 0.1 and 0.251C, and periods of about 20 and 60 years, respectively, are synchronized to the orbital periods of Jupiter and Saturn. Schwabe and Hale solar cycles are also visible in the temperature records. A 9.1-year cycle is synchronized to the Moon’s orbital cycles. A phenomenological model based on these astronomical cycles can be used to well reconstruct the temperature oscillations since 1850 and to make partial forecasts for the 21st century. It is found that at least 60% of the global warming observed since 1970 has been induced by the combined effect of the above natural climate oscillations. The partial forecast indicates that climate may stabilize or cool until 2030–2040. Possible physical mechanisms are qualitatively discussed with an emphasis on the phenomenon of collective synchronization of coupled oscillators.”

Yet the pre-amble/background to the survey, that includes the statement that skeptics “are doubtful that climate change is occurring”,  suggests prominent sceptics like myself and Nicola Scafetta deny such a reality.

The first question in the questionaire then reiterates this nonsense.

It is disappointing that such a prominent university could be so ignorance of the real position of those it purports to characterize.

Kind regards

Jennifer Marohasy, PhD

Filed Under: Information Tagged With: Climate & Climate Change

Open Thread

September 22, 2014 By jennifer

“The mass crushes out the insight and reflection that are still possible with the individual, and this necessarily leads to doctrinaire and authoritarian tyranny if ever the constitutional State should succumb to a fit of weakness.

In a state of collective possession they are the adapted ones and consequently they feel quite at home in it.  C.G. Jung 1957, page 5
In a state of collective possession they are the adapted ones and consequently they feel quite at home in it. C.G. Jung 1957, page 5

“Rational argument can be conducted with some prospect of success only so long as the emotionality of a given situation does not exceed a certain critical degree. If the effective temperature rises above this level, the possibility of reason’s having any effect ceases and its place is take by slogans and chimerical wish-fantasies. That is to say, a sort of collective possession results which rapidly develops into a psychic epidemic.”

The Undiscovered Self by C.G. Jung. 1957. Pages 4-5.

Filed Under: Information Tagged With: Climate & Climate Change

Revisionist Approach Destroys Information About Natural Cycles Embedded in Climate Data

August 20, 2014 By jennifer

“THE process of long range forecasting is thousands of years in the making and is still used in older cultures. The Greeks inherited their knowledge from the people of the Indus Valley and Asia, Hebraic Sumerians, Chaldeans and from northern Africa. Agricultural economies needed reliable calendars and recognition of systems that both influenced and tracked seasonal fluctuations. Monitoring developed in several cultures at once over several millennia and survives today in the Near and Far East

The sacred knowledge that was passed down was that orbiting planets affect Earth and finding past matches of cycle peaks and troughs were pointers for long range predicting. It has nothing whatever to do with carbon dioxide. In exploring relationships larger planets have to each other we can observe that the so-called gas giants affect the sun when they are at certain angles. Also we can record over time how the moon causes tides in land, sea and air and how this brings cycles of, in land – earthquakes, on water – kingtides and floods, and through the atmosphere – heat waves and droughts.

Every 20 years both Jupiter and Saturn are alongside each other on one side of the sun (last in June 2000, next in November 2020) and on opposite sides of the sun (last on September 2010 and next in September 2030). From the orbits of Jupiter and Saturn comes the decadal sunspot cycle. This regularly repeating pulse of radiation affects earth’s electromagnetic field and in turn influences the atmosphere. The 11-12yr sunspot cycle correlates with Jupiter’s 11.8-yr cycle orbiting Earth

I’m quoting Ken Ring, writing for Yahoo news.

But the mainstream climate science community is intent on denying such cycles.

On page 5 of The Weekend Australian newspaper is an article by Graham Lloyd explaining how difficult it was for Australian scientist Robert Baker to get work published that suggested natural climate cycles should be taken into account when considering coastal planning and the threat of sea level rise.

In fact, as I see it, the mainstream climate science community is intent on destroying any evidence of natural climate cycles embedded in historical temperature data. I have gone into some detail, explaining the practical implications of this wanton disregard for the received evidence, in my most recent letter to Senator Simon Birmingham who has been delegated responsibility for oversight of the activities of the Bureau of Meteorology by Minister Greg Hunt.

Copies of all my correspondence to Ministers Hunt and Senator Birmingham are available online here: https://jennifermarohasy.com.dev.internet-thinking.com.au/correspondence/

If you share my concerns, what about sending the Senator your own letter or email asking that he intervene and stop the Bureau continuing with this revisionist approach to history. His contact details are here… http://www.senatorbirmingham.com.au/contact . As Edmund Burke wrote: All that is necessary for the triumph of evil is for good men to do nothing.

Surely Senator Birmingham has an obligation to take some interest in the Bureau's revisionist approach to the nation's temperature data!
Surely Senator Birmingham has an obligation to take some interest in the Bureau’s revisionist approach to the nation’s temperature data!

Filed Under: Information Tagged With: Climate & Climate Change, Temperatures

Three Facts Most Sceptics Don’t Seem to Understand

July 26, 2014 By jennifer

A couple of weeks ago I had the opportunity to attend the Ninth International Conference on Climate Change (ICCC9) in Las Vegas. If you ever doubted scepticism towards man-made global warming as a growing social movement, well, you couldn’t after attending that conference with hundreds of enthusiastic doubters in attendance and some 6,000 watching online.

Joseph Bast addresses ICCC9
Joseph Bast addresses ICCC9

But I came away wondering about the culture that is developing around the movement, and whether it is truly one of enlightenment.

Most of us share enlightenment values. And skepticism is historically associated with the Enlightenment. But it should be skepticism of entrenched dogmas, not an automatic opposition to every new big idea. Indeed the enlightenment saw big ideas progress; ideas that once realized, dramatically improved the human condition.

Many sceptics apparently think that we have won the scientific argument, and that our next objective should be the dismantling of climate policies and climate research. But they are wrong. We have not won the scientific argument and we won’t, if we continue down the current path of suggesting that we can’t forecast weather or climate. This suggestion, that we can’t forecast, was often made at the conference and made again just last week by Jo Nova quoting Don Aitkin.

The history of science suggests that paradigms are never disproven, they are only ever replaced. Physicist and philosopher, the late Thomas S. Kuhn, also explained that competition within segments of the scientific community is the only historical process that ever actually results in the rejection of one previously accepted theory or in the adoption of another.

In short, if our movement really wants to see the overthrow of the man-made global warming paradigm, it needs to back alternatives and promote new research.

Assuming we are indeed a movement with a desire to contribute in a tangible way to climate science, and a movement looking for viable alternative paradigms, then we need a way of sorting through incommensurable perspectives, and also a way of ensuring that the most promising research is promoted.

Let me make these points in a bit more detail:

1. We have not won the scientific argument.

It was repeatedly suggested at the ICCC9 conference that those sceptical of man-made global warming have some how won the scientific argument. This is nonsense.

On my arrival back in Australia I was forwarded yet another letter from an Australian government official reiterating that: “The Australian Government accepts the science of climate change and takes its primary advice on climate change from the Bureau of Meteorology and CSIRO. This advice aligns with information provided by the IPCC and national and international organisations such as the Australian Academy of Science, World Meteorological Organisation, the Royal Society in the United Kingdom, and the National Academy of Sciences, National Oceanic and Atmospheric Administration, and National Aeronautics and Space Administration (NASA) in the United States.”

The letter goes on to state that, “The world’s leading scientific organisations have found that the Earth’s climate is changing and that humans are primarily responsible…”

Not only do these esteemed organisations accept anthropogenic global warming theory (AGW), they also work actively with the mainstream media to crush, ridicule or quarantine any criticism of AGW.

If those sceptical of man-made global warming can be accused of denial, it is of this fact. We might be having some impact on the political process, even achieving repeal of the carbon tax in Australia, but the science of anthropogenic global warming remains as firmly entrenched as ever especially amongst the media, academics and legislators.

2. Rebuttals don’t overthrow established paradigms.

Anthropogenic global warming is a fully functional, well-funded scientific paradigm that is having a major impact on social and economic policy in every western democracy.

As I explained in session 13 at the conference: Scientific disciplines are always underpinned by theories that collectively define the dominant paradigm. In the case of modern climate science that paradigm is AGW. It defines the research questions asked, and dictates the methodology employed by the majority of climate scientists most of the time. AGW may be a paradigm with little practical utility and tremendous political value, but it’s a paradigm none-the-less. The world’s most powerful and influential leaders also endorse AGW.

In a lecture to the Commonwealth Club in San Francisco in September 2003 Michael Crichton said: “The greatest challenge facing mankind is the challenge of distinguishing reality from fantasy, truth from propaganda. Perceiving the truth has always been a challenge to mankind, but in the information age (or as I think of it, the disinformation age) it takes on a special urgency and importance.”

Scientists are meant to know the difference between fact and fiction and as a first check of the reliability of a source of information they will often ask if it has been “peer-reviewed”. Peer-review means that research findings are conducted and presented to a standard that other scientists working within that field consider acceptable. This is normally achieved through publication in a scientific journal and involves the editor of the journal asking for comment on the validity, significance and originality of the work from other scientists before publication. In short, the system of peer-review means scientific research is subject to independent scrutiny but it doesn’t guarantee the truth of the research finding.

In theory rebuttals play an equal or more important role than peer review in guaranteeing the integrity of science. By rebuttals I mean articles, also in peer-reviewed journals, that show by means of contrary evidence and argument, that an earlier claim was false. By pointing out flaws in scientific papers that have passed peer-review, rebuttals, at least theoretically, enable scientific research programs to self-correct. But in reality most rebuttals are totally ignored and so fashionable ideas often persist even when they have been disproven.

Consider, for example, a paper published in 2006 by marine biologist, Boris Worm, and coworkers, in the prestigious peer-reviewed journal Science. The study was based on the meta-analysis of published fisheries data and predicted the collapse of the world’s fisheries by 2048. Publication of the article by Worm et al. was accompanied by a media release entitled “Accelerated loss of ocean species threatens human well-being” with the subtitle “Current trend projects collapse of all currently fished seafoods before 2050”.

Not surprisingly, given the importance of the finding, the article attracted widespread attention in the mainstream media and also within the scientific community. But not everyone agreed with the methodology used in the Worm study. Eleven rebuttals soon appeared, many within the same journal Science, and within months of the original article.

The rebuttals, however, scarcely altered the scientific perception of the original article.

In a comprehensive study of this, and six other high-profile original articles and their rebuttals, Jeannette Banobi, Trevor Branch and Ray Hilborn, found that at least in marine biology and fishery science rebuttals are for the most part ignored.

They found that original articles were cited on average 17 times more than rebuttals and that annual citation numbers were unaffected by rebuttals. On the occasions when rebuttals were cited, the citing papers on average had neutral views on the original article, and incredibly 8 percent actually believed that the rebuttal agreed with the original article.

Dr Banobi and coworkers commented that: “We had anticipated that as time passed, citations of the original articles would become more negative, and these articles would be less cited than other articles published in the same journal and year. In fact, support for the original articles remained undiminished over time and perhaps even increased, and we found no evidence of a decline in citations for any of the original articles following publication of the rebuttals…
“Thus the pattern we observed follows most closely the hypothesis of competing research programs espoused by Lakatos (1978): in practice, research programs producing and supporting the views in the original papers remained unswayed by the publication of rebuttals, thus significant changes in these ideas will tend to occur only if these research programs decay and dwindle over time while rival research programs (sponsored by the rebuttal authors) gain strength.”

Indeed it is the naive view that scientific communities learn from obvious mistakes. And as past failures become more entrenched it can only become increasingly difficult to distinguish truth from propaganda, including in the peer-reviewed literature.

3. Paradigms are never disproven: they are only ever replaced.

Since my return from the conference, it has been suggested to me that the ‘new paradigm’ for climate science is the one described in the Nongovernmental International Panel on Climate Change (NIPCC) reports, in particular the ‘null hypothesis paradigm’ that according to many skeptics, is far better at accounting for climate phenomena than are the General Circulation Models. I disagree.

The null hypothesis refers to the general statement or default position that there is no relationship between two measured phenomena. In the case of NIPCC the claim is that “nature not human activity rules the climate”. But this tells us almost nothing. In many ways it’s a cop-out. It’s like a theory of electricity without any explanation of charge, voltage or magnetism.

A good test of the value of any scientific theory to those external to the discipline is its utility. For example the calendars that were developed based on Nicolas Copernicus’ Heliocentric Theory of the Universe were better calendars than those based on Ptolemy’s Handy Tables. The new calendars, based on a new theoretical approach, more precisely predicted the position of the sun and the planets and thus the seasons, which, of course, influence the weather. In the same way, those who want to see AGW theory discarded need to increase their expectations of climate science and in particular demand some practical benefits. The most obvious would be better weather and climate forecasts.

Last year, aversion to a new theory attributing solar variability to gravitational and inertial effects on the sun from the planets and their satellites, not only resulted in the premature termination of a much-needed new journal (Pattern Recognition in Physics), but was also mocked by leading skeptical bloggers. More recently leading skeptical bloggers, Willis Eschenbach and Lubos Motl, were far too quick to attack a new notch-delay solar model that David Evans and Jo Nova developed in an attempt to quantify the difference between total solar irradiance and global temperatures and in the process forecast future climate.

In attempting to understand Dr Motl’s issues with Evans and Nova’s model, I was told that my work with John Abbot forecasting rainfall was also no better than “a sort of magic” because, like Evans and Nova, I was describing relationships “without a proper understanding of which variables are really driving things”. To the layman the few paragraphs of relevant jargon that Motl posted at his blog may have given the impression of some special knowledge, but in reality he was just repeating prejudices including the popular claim that climate is essentially chaotic.

Over the last few years my main focus of research has been on medium-term monthly rainfall forecasts. Not using General Circulation Models (GCMs) that attempt to simulate the climate from first principles, but rather using artificial neural networks (ANNs), which are a form of artificial intelligence and a state-of-the-art statistical modeling technique. John Abbot and I very quickly established that our method – which relies on mining historical climate data for patterns and then projecting forward – could produce a much more skillful medium term rainfall forecast than the Australian Bureau of Meteorology’s best GCM.

Of course the use of statistical models for forecasting is not new, nor is pattern analysis. Many long-range weather forecasters and astrophysicists rely on lunar, solar and planetary cycles to forecast both weather and climate.

So, I was somewhat surprised to hear so many big names at the conference claim from the podium that it would never be possible to forecast weather more than a few days in advance, some going as far to suggest, like Lubos Motl, that climate is essentially a chaotic system.

Such claims are demonstrably false. Indeed that our ANNs (see Atmospheric Research 138, 166-178) can generate skillful monthly rainfall forecast up to three months in advance, is evidence that we are not dealing with a chaotic system.

Until skeptics start thinking about these issues and the need to back something, rather than perhaps always being too keen to knock the next big idea, we won’t truly make progress towards replacing the current dominant paradigm in climate science.

Filed Under: Information, Opinion, Philosophy Tagged With: Climate & Climate Change

Science Fiction & Climate Change: A Speech by George Christensen MP in Vegas

July 15, 2014 By jennifer

“I KNOW good science fiction when I see it. And that is what I have seen in the climate change debate – a lot of fiction dressed up as science. Most great works of fiction end up on the silver screen so it was inevitable that climate change would become a “major motion picture”.

Jennifer Marohasy and George Christensen in Vegas
Jennifer Marohasy and George Christensen in Vegas

But a screenwriter has several angles to work with and which one they choose depends on whereabouts on the climate change timeline they pick up the story.

Early on in the piece, it is a disaster-cum-thriller plot as prophets warn of the impending doom of mankind and the planet. The story then lurches towards a slasher-style horror flick as ever more graphic descriptions are used to scare people into submission. Finally, the plot descends into a farcical comedy as government and environmental terrorists make ridiculous suggestions about how mankind will control the planet. In Australia, we have crossed that point where the horror genre is descending into a comedy…”

So, these were some of the words George Christensen MP used to open his speech to the Ninth International Conference on Climate Change in Las Vegas last week. It was entertaining with snippets of real information about what has been the economic cost of this folly to the Australian nation. You can watch the entire presentation from the link below (it starts at 29:00) or here (Keynote Lunch Tuesday), and read the text here.



Broadcast live streaming video on Ustream

Filed Under: Information, Opinion Tagged With: Climate & Climate Change, Conferences

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Jennifer Marohasy Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation. Read more

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