-- Will we say goodbye to free speech?
Reality bites – especially in a war
Disinformation – what it is, who promotes it, and how to combat it.
Nord Stream terrorism, UN failure, and “Official Secrets”
Secret “war-crime” warrants by International Criminal Court is mischief-making
Getting the full story about Ukraine
The west vs the rest – the world is changing
Ukraine commemorates Nazi collaborators
Do New Zealanders no longer support Ukraine?
The subtlety of neo-Nazi influence in Ukraine – ignored by our media
Where are Ukrainian refugees going? – an update
Is New Zealand covertly supporting the glorification of neo-Nazism?
Following the war in Ukraine – an update
Russian anti-war protester goes to see for herself
You can’t understand Ukraine without acknowledging its deep divisions
Once again, those Russian neo-Nazis – the Wagner group
A heartwarming story about a Ukrainian prisoner of war
Over 50 POWs killed. A military accident or a cynical war crime?
Ukraine/Russia war, an intelligence operation or a sting, Ukrainian and UK spies, and Bellingcat
Mainstream media defends poor journalism by smearing good journalism
Ukraine war – a shocking failure of our mainstream media
How is the war going?
Why should Ukraine listen to lame duck Boris Johnson?
Ukraine war – a failure of honest diplomacy and reason
British volunteer soldier in Ukraine speaks up
What about those Russian neo-Nazis?
Neo-Nazis in Ukraine – stages of denial
Confusion about neo-Nazis in Ukraine-Russia war
Neo-Nazis in Ukraine. Comedians are often more truthful than politicians.
Ukraine – a beginner’s guide
Why the silence on censorship?
Everything You Know About Ukraine Is WRONG
Some sense on the Russia-Ukraine war
British volunteer soldier in Ukraine tells his story
Virtue signaling over Ukraine
Fluoridation and child IQ – the problem of counting chickens before they hatch
August ’21 – NZ blogs sitemeter ranking
July ’21 – NZ blogs sitemeter ranking
June ’21 – NZ blogs sitemeter ranking
Anti-fluoridation group tells porkies about NZ fluoridation review
Opponents of fluoridation all at sea with new legislation
Update of NZ fluoridation review timely and useful
May ’21 – NZ blogs sitemeter ranking
Fluoridation contribution to heavy metals in drinking water is too low to measure
April ’21 – NZ blogs sitemeter ranking
Hip fractures in the elderly and fluoride – contradictory evidence
March ’21 – NZ blogs sitemeter ranking
An open letter to Paul Connet and the anti-fluoride movement
February ’21 – NZ blogs sitemeter ranking
Data dredging, p-hacking and motivated discussion in anti-fluoride paper
Censorship: Thinking you are right – even if you’re wrong
Embarrassing knock-back of second draft review of possible cognitive health effects of fluoride
The promotion of weak statistical relationships in science
Can we trust science?
January ’21 – NZ blogs sitemeter ranking
I don’t “believe” in science – and neither should you
December ’20 – NZ blogs sitemeter ranking
Science is often wrong – be critical
November ’20 – NZ blogs sitemeter ranking
Hyping it up over fluoridation
September ’20 – NZ blogs sitemeter ranking
August ’20 – NZ blogs sitemeter ranking
July ’20 – NZ blogs sitemeter ranking
Even studies from endemic fluorosis areas show fluoride is not harmful at levels used in fluoridation
Canadian studies confirm findings of Broadbent et al (2015) – fluoridation has no effect on child IQ
Child IQ in countries with endemic fluorosis imply fluoridation is safe.
Anti-fluoride 65 brain-fluoride studies not evidence against fluoridation
June ’20 – NZ blogs sitemeter ranking delayed
Another study used by anti-fluoride activists actually shows community water fluoridation OK
May ’20 – NZ blogs sitemeter ranking
When scientists get political: Lead fluoride-IQ researcher launches emotional attack on her scientific critics
New study touted by anti-fluoridation campaigners actually indicates fluoridation is safe
No relationship of bone cancer to fluoridation – another new study the anti-fluoride brigade will attempt to ignore
New review finds fluoride is not a developmental neurotoxicant at exposure levels relevant to fluoridation
April ’20 – NZ blogs sitemeter ranking
Anti-fluoride campaigners still rely on irrelevant studies
Author confirms anti-fluoridation activist misrepresentation of her work
Anti-fluoridation propaganda now relies on only four studies. 6: Incestuous relationship of these studies
Anti-fluoridation propaganda now relies on only four studies. 5: Don’t censor yourself
Anti-fluoridation propaganda now relies on only four studies. 4: Till et al (2020)
Anti-fluoridation propaganda now relies on only four studies. 3: Riddell et al (2019)
Anti-fluoridation propaganda now relies on only four studies. 2: Green et al (2019)
Anti-fluoridation propaganda now relies on only four studies. 1: Bashash et al (2018)
March ’20 – NZ blogs sitemeter ranking
No; a new study from Ethiopia does not indicate fluoridation is bad for your bones
Anti-fluoridationists put faith in new “strong” studies to provide evidence missing in draft NTP review
Industry-funded translation can introduce bias in selection of studies for scientific review
Another embarrassment for anti-fluoride campaigners as neurotoxic claim found not to be justified
February ’20 – NZ blogs sitemeter ranking
Beware of scientific paper abstracts – read the full text to avoid being fooled
January ’20 – NZ blogs sitemeter ranking
Fluoridation and sex steroid hormones – or the mouse that roared
What are the recent fluoride-IQ studies really saying about community water fluoridation?
December ’19 – NZ blogs sitemeter ranking
Fluoridation science and political advocacy – who is fooling who?
Scientific integrity & fluoridation – Dr Ghali responds
Sleep disorders and fluoride: dredging data to confirm a bias
Some fluoride-IQ researchers seem to be taking in each other’s laundry
Statistical manipulation to get publishable results
Scientific integrity requires critical investigation – not blind acceptance
November ’19 – NZ blogs sitemeter ranking
Anti-fluoride propagandists appear not to read the articles they promote
The anti-fluoride brigade won’t be erecting billboards about this study
October ’19 – NZ blogs sitemeter ranking
ADHD and fluoride – wishful thinking supported by statistical manipulation?
Experts complain to funding body about quality of fluoride-IQ research
What do these mother-child studies really say about fluoridation?
September ’19 – NZ blogs sitemeter ranking
Biostatistical problems with the Canadian fluoride/IQ study
Fluoridation – A new fight against scientific misinformation
An evidence-based discussion of the Canadian fluoride/IQ study
More expert comments on the Canadian fluoride-IQ paper
Politics of science – making a silk purse out of a sow’s ear
August ’19 – NZ blogs sitemeter ranking
Bye, bye to the collusion lie
If at first you don’t succeed . . . statistical manipulation might help
Anti-fluoride activists misrepresent a new kidney/liver study
July ’19 – NZ blogs sitemeter ranking
MH17 tragedy- 5 years on
June ’19 – NZ blogs sitemeter ranking
Chemical watchdog confirms suppressed report but justifies the suppression
May ’19 – NZ blogs sitemeter ranking
Does international chemical watchdog cherry-pick evidence to confirm a bias?
Psychology of Russiagate – an adult discussion for a change
April ’19 – NZ blogs sitemeter ranking
Russiagate – Some insights into its origins and results
Russiagate: Lessons for the media. But will they listen?
March ’19 – NZ blogs sitemeter ranking
Aftermath of the Mueller report – the media starts looking at itself
Mueller report to be released mid April – but it will be redacted
Collapse of the “Russiagate ” myth exposes how corporate media has failed
Getting out alive – why we should always demand evidence
Terrorism in Christchurch – some thoughts
“Disinformation” and the mainstream media
February ’19 – NZ blogs sitemeter ranking
January ’19 – NZ blogs sitemeter ranking
Preempting the annual misrepresentation of NZ dental health data by anti-fluoride activists
December ’18 – NZ blogs sitemeter ranking
Fluoridation: Another study shows stopping fluoridation bad for child tooth decay
November ’18 – NZ blogs sitemeter ranking
Media manipulation – the tail wags the dog
Protection of teeth by fluoride confirmed – yet again
And you thought Russiagate could not get sillier.
Trump and the media – codependents wallowing in the mud
Julian Assange’s mother appeals for her son’s freedom
October ’18 – NZ blogs sitemeter ranking
Nuclear dangers if INF treaty abandoned could be worse than in the 1980s
Fluoridation and ADHD: A new round of statistical straw clutching
September ’18 – NZ blogs sitemeter ranking
September ’18 NZ blog ranking – delayed
Flight MH17 tragedy in Ukraine – new evidence
Novichock detection and the Salisbury tourists
A more convincing take on prenatal maternal dietary effects on child IQ
Fluoridation: “debating” the science?
Opportunities and problems for grassroots activism offered by the internet
August ’18 – NZ blogs sitemeter ranking
Who is weaponising the vaccination debate?
Another BUK accident in Ukraine
Policing social media – who is coming next and who is behind it?
Political interference prevents investigators from considering the “bleeding obvious”
July ’18 – NZ blogs sitemeter ranking
Mainstream media “mob violence” over Helsinki summit
Blatant misreporting of latest OPCW report on chemical weapons in Syria
Time for a serious auditing of Porton Down’s nerve agent stocks?
June ’18 – NZ blogs sitemeter ranking
Anti-fluoride campaigners exhaust their legal channels with another loss
Magical World Cup Gala Concert
May ’18 – NZ blogs sitemeter ranking
Anti-fluoridation activists buy scientific credibility using a predatory publisher
Another shonky OPCW chemical incident report on Syria
Not just another rat study
Russian sports doping scandal looking like an illusion?
April ’18 – NZ blogs sitemeter ranking
Mainstream media-political alliance gets vindictive
Novichock – a marketing ploy?
The “heart of the Syrian chemical weapons programme” destroyed?
OPCW on Salisbury poisoning – one step forward, two back?
Anti-fluoridationist Paul Connett misrepresents NZ data
Anti-fluoridationists rejection of IQ studies in fluoridated area.
March ’18 – NZ blogs sitemeter ranking
A conference paper on the maternal prenatal urinary fluoride/child IQ study has problems
The 52 IQ studies used by anti-fluoride campaigners
The real lessons from Vladimir Putin’s re-election
Why is it so difficult to get an open discussion on fluoridation?
Mary Byrne’s criticism is misplaced and avoids the real issues
Anti-fluoride group coordinator responds to my article
Where could you get a nerve agent in Salisbury?
The first casualty . .
Paul Connett’s misrepresentation of maternal F exposure study debunked
February ’18 – NZ blogs sitemeter ranking
Anti-fluoride activist commits “Death by PowerPoint”
Paul Connett “updates” NZ MPs about fluoride?
Anti-fluoride activists misrepresent another thyroid study
Fake news from the White Helmets returns
RT election subversion – yet again?
January ’18 – NZ blogs sitemeter ranking
Yet another fluoride-IQ study
So you are saying . . . . . !
Jordan Peterson demonstrates the importance of free speech
Select your conspiracy theory and connect the dots
Whose who in the Russiagate affair – an infographic
A week of good news in New Zealand
Is “Russiagate” another deception like Iraqi WMDs?
“Fire and Fury” exposes the fundamental problems of the anti-Trump movement
Confirmation bias – we all suffer from it but how can we reduce its effect?
December ’17 – NZ blogs sitemeter ranking
Yet another way Russia is undermining our society
Anti-fluoridationists misrepresent New Zealand dental data – an annual event
Fluoridation means money in the pocket
Anti-fluoridation campaigners often use statistical significance to confirm bias
November ’17 – NZ blogs sitemeter ranking
The problem with scepticism
Chemical weapons use in Syria UN report flawed by political bias
Anti-fluoride “expert” finds the real reason oral health has improved – and it’s not fluoride
Meat substitutes – prospects and new ethical questions
October ’17 – NZ blogs sitemeter ranking
New fluoride debate falters
Political maturity in New Zealand – at least compared to the US
Flaw and porkie in anti-fluoride report claiming a flaw in Canadian study
Do we need a new fluoride debate?
September ’17 – NZ blogs sitemeter ranking
Endemic fluorosis and its health effects
Maternal urinary fluoride/IQ study – an update
Fluoride, pregnancy and the IQ of offspring
Facts about fluorosis – not a worry in New Zealand
We need more post-publication peer review
Cassini plunges into Saturn tonight – a grand finale
What’s with the anti-fluoridationist promotion of dental health programmes?
Non-violence in the defence of free speech
August ’17 – NZ blogs sitemeter ranking
Fluoridation not associated with ADHD – a myth put to rest
From Charlottesville to Boston – a lesson
Hypocrisy, irrationality and wise words from Monty Python
Are we all anti-fascist now?
Are fluoride researchers sacked for their findings?
Fluoridation and cancer
Local anti-fluoride activists tell porkies yet again
July ’17 – NZ blogs sitemeter ranking
The main stream media is out of touch
Don’t rely on sources – follow the evidence
Stovepiping to produce fake news
June ’17 – NZ blogs sitemeter ranking
Darwin, sexual selection and Putin
Fluoridation: Open letter to Democrats for Social Credit
Fluoridation: What’s happening with the New Zealand legislation?
May ’17 – NZ blogs sitemeter ranking
The “information war” and social media, or how to tell if you are a Kremlin troll
Anti-fluoridationists commonly misrepresent Ministry of Health data
ChildSmile – a complement, not an alternative, to fluoridation
Fluoridation helps protect adult teeth as well as children’s
Fluoridation: the truth about heavy metal contamination
Visualising the numbers – The Fallen of World War II
Bottle fed infants: fluoridated water not a problem
April ’17 – NZ blogs sitemeter ranking
Citing scientific studies and the arrogance of ignorance
No, fluoridation is not associated with leading causes of death
Anti-fluoridationists exploit infant deaths by fiddling statistics
Here we go again
The Putin Derangement Syndrome
Bottle fed infants: fluoridated water not a problem.
March ’17 – NZ blogs sitemeter ranking
Another anti-fluoridation whopper
2018 Global Atheist Convention
Fluoridation: Making sense of the Ministry of Health data
Fluoride, coffee and activist confusion
Trump didn’t invent the problems – and his opponents didn’t invent protest
Anti-fluoride authors indulge in data manipulation and statistical porkies
Be careful what you wish for
An Oscar for Al Qaeda?
February ’17 – NZ blogs sitemeter ranking
EPA comprehensively debunks anti-fluoride claims of a fluoride-IQ effect
Anti-fluoridationists go to Supreme Court – who is paying for this?
Debunking a “classic” fluoride-IQ paper by leading anti-fluoride propagandists
Islamophobia or mental illness?
Tha Amnesty report – and a response from Syria
Non-fluoridated Christchurch does not have better teeth than fluoridated Auckland
January ’17 – NZ blogs sitemeter ranking
Debunking anti-fluoridationist’s remaining 12 reasons for opposing fluoridation
Madonna teaches us a lesson in critical thinking
New research confirms adults benefit from community water fluoridation as well as children
Premature births a factor in cognitive deficits observed in areas of endemic fluorosis?
Sources our mainstream media uses to promote their narrative about Syria
More nails in the coffin of the anti-fluoridation myths around IQ and hypothyroidism
Water fluoridation – what to expect in the near future
Fluoridation: New scientific review of fluoride and oral health
Critical thinking, not censorship, is the solution to fake news
Anti-fluoride IQ claims are false
December ’16 – NZ blogs sitemeter ranking
Large Swedish study finds no effect of fluoride on IQ
Fake news and the new fact-free reporting paradigm
Fluoridation: New research confirms it is cost effective – yet again
Fluoridation: members of parliament call from submissions from scientific and health experts
Fake news, human suffering and the fight against terrorism
November ’16 – NZ blogs sitemeter ranking
Sometimes I think the world has gone mad
Leader of flawed fluoridation study gets money for another go
White Helmets confirm authenticity of acted “rescue” video
Manufacturing news, and opinion, about Syria
Why should we subsidise religious leaders and their silly statements?
Warriors, scouts, Trump’s election and your news media
US elections – who should you be angry with?
Trump’s victory – why the surprise, why the anger?
Anti-fluoride claims often not relevant to New Zealand
October ’16 – NZ blogs sitemeter ranking
White Helmets dupes New Zealand government?
Voluntary media censorship is ethically wrong
Fluoridation not associated with hip fracture, heart attacks of osteosarcoma – new study
Anti-fluoridation activist Paul Connett has a senior moment about our debate
“Humanitarian” intervention and war crimes
Crocodile tears over Syria at UN security council
Anti-Syrian propaganda and the White Helmets
Shyness of anti-fluoride election candidates
Syria & the fog of war
September ’16 – NZ blogs sitemeter ranking
But will it stand up in court?
Flogging a dead horse – anti-fluoridationists lose in court again
Syria UN Ambassador makes sense of the war in Syria
The shaky Syrian ceasefire agreement staggers on – or does it?
Fluoridation & democracy: Open letter to DHB candidate Andrew Buckley
When will they ever learn?
Ceasefire in Syria is exposing real nature of “moderate” rebels
What do Syrians think of the new cessation of hostilities agreement?
Dissecting pseudoscientific and political propaganda
August ’16 – NZ blogs sitemeter ranking
An anti-fluoride trick: Impressing the naive with citations
Does community water fluoridation reduce diabetes prevalence?
“Filtering” out fluoride
Rio Olympics – what are those gold medals worth?
Fluoridation – freedom of choice
Is water fluoridation better than salt fluoridation?
Ethics and the doping scandal – a response to Guest Work
Being better informed – unexpected advice from The Guardian
July ’16 – NZ blogs sitemeter ranking
Quantifying the problem of international sports doping
Dental health – it’s not all about fluoride
The Putin diversion
The insult of low expectations
MH17 tragedy – 2 years on
Misrepresenting fluoride science – an open letter to Paul Connett
Are you really right?
June ’16 – NZ blogs sitemeter ranking
Why don’t feminists fight for Muslim women?
Permission to have that conversation
A cynical take on effective speakers
Richard Dawkins – speech to Reason Rally, 2016
Chemophobic scaremongering: Much ado about absolutely nothing
MH17 tragedy – new investigation launched
Fluoridation: News media should check press releases from anti-fluoridationists
Fluoridation debate: Responding to Tom O’Connor
May ’16 – NZ blogs sitemeter ranking
New review shows clear economic benefits from community water fluoridation
Debating fluoridation and tyranny – Tom O’Connor responds
Attempting a tyranny of the minority on fluoridation
Writing to please the reader’s ear
Fluoridation: One small step sideways?
New research confirms water fluoridation does not cause bone cancers
Public discussion of science can be toxic
Fluoridation cessation studies reviewed – overall increase in tooth decay noted
Mistakes were made – but by who?
Don’t be fooled by simple media “science”
“Do the math” – a bit like “Do the research!”
Victory Day celebration of defeat of terrorism in Palmyra
Will we be using contact lens cameras in future?
Barrel bombs, hell cannons, Aleppo and media bias
April ’16 – NZ blogs sitemeter ranking
Korean community water fluoridation supported by new evidence
Science and management – a clash of cultures
Anti-fluoride campaigners cherry-pick irrelevant overseas research but can’t find relevant New Zealand research
Cochrane fluoridation review described as “empty”
Anti-fluoridationists misrepresent new dental data for New Zealand children
A challenge to anti-fluoridationers to justify their misrepresentation of New Zealand research
Fluoridation decisions to be made by District Health Boards
Nadine gives a necessary message to her fellow Muslims
Anti-fluoridationists now scaremonger about silica in your drinking water
Reversed responsibility and the burden of proof
Anti-fluoridation cherry-pickers at it again
March ’16 – NZ blogs sitemeter ranking
Fluoridation: My podcast with with Howard Farran
Why is Donald Trump so successful – and will he win?
Why are our politicians so silent on Palmyra’s liberation from clutches of Daesh?
The US speaks in two tongues on terrorism
Chemistry is everywhere – even in those natural products
Life for women under Daesh (ISIS)
The toxicity of chemophobia
Anti-fluoridation campaigner, Stan Litras, misrepresents WHO
Hiding behind “experts”
The “interfaith” trap – particularly for atheists
A Chinese study the anti-fluoridation crowd won’t be citing
Misrepresentation, misogyny and misandry – these should concern sceptics
Searching articles on fluoride
February ’16 – NZ blogs sitemeter ranking
Big business funding of anti-science propaganda on health
Anti-fluoridationist’s flawed attacks on Calgary study
Media misleading on Syria
Stephen Fry on Twitter
Richard Dawkins and the Skeptics Conference controversy.
Is the media lying to you about Syria?
Fluoridation: Whakatane teaches us something we should already know
Chemistry – “to dupe, to cheat?”
What a pleasant surprise!
Censorship by demonisation
Once more on the IQ and fluoride myth – why ignore other factors?
January ’16 – NZ blogs sitemeter ranking
Fluoridation: Whakatane District Council makes the Hamilton mistake
New study finds community water fluoridation still cost effective
“Crusade Against Multiple Regression Analysis” – don’t throw baby out with bathwater
Fluoridation: Some simple chemistry
The danger of insisting on your own facts
Flight MH17 in Ukraine – what do intelligence services know?
Iron and fluoride in human milk
Hubris of the google researcher
The Harvard study and the Lancet paper
Cultural and ideological bias in scientific literature reviews
Facts, beliefs and delusions
Science – a method of investigation, not a belief system
Yet another misrepresentation of a dental health study
December ’15 – NZ blogs sitemeter ranking
Peer review – the “tyranny” of the third reviewer
Christmas – “White Wine In The Sun”
Community water fluoridation still cost-effective
Democracy and expert advice on scientific issues
Fluoride and IQ – another study coming up
The hardest thing in life . .
Climate deal signed – now for the hard bit: action
Traditions and social arrangements out of step with social diversity
“Natural News” on trial in The Hague for crimes against science
Rejection of scientific studies in online discussions
Another defeat for anti-fluoridation claims about arsenic
November ’15 – NZ blogs sitemeter ranking
The problem with reasoned discussion
John Pilger on Paris, ISIS and Media Propaganda
Science is never done – some scientific terms explained
Studies show – or do they?
Should we trust science? – Wellington talk
Can world leaders learn from the Paris terror attacks?
Anti-fluoride hypothyroidism paper slammed yet again
Cyberchondria and similar “illnesses”
Onehunga and the “fluoride-free” myth
Thames voters decisively support fluoridation
Why doesn’t Putin shirtfront someone?
October ’15 – NZ blogs sitemeter ranking
Scientific papers, civil disobedience and personal networks
The quackery of anti-fluoride internet trolls
Our beautiful planet: Astronaut art works
Christian co-option of karakia
Combatting anti-fluoride Gish gallopers
MH17: Final technical report
Responding to Tracey Brown on fluoridation
“The ugly truth” – Tracey Brown ticks me off
MH17 – another Boeing sacrificed for investigation.
The ugly truth about critics of “the ugly truth” in science
Many Syrians see Russians as saviours
Door knockers should pay to interrupt us
September ’15 – NZ blogs sitemeter ranking
Fluoride: More scaremongering using drug warnings
Putin’s UN address: “Do you realise what you’ve done?”
Obama’s United Nations address: “We Must Stamp Out ‘Apocalyptic Cult’ ISIS”
European and Māori major non-believers in NZ
Cochrane responds to misrepresentation of their fluoridation review
ChildSmile dental health – its pros and cons
Should all scientists really be militant atheists?
The Alternative Medicine Racket
The chemical party
A job with a view – but not for the clumsy
Fluoridation: Freedom of choice – and responsibility
My talk to the Reason & Science Society – an invite
Why the internet annoys chemists
Freedom of religion and belief – not a license to interfere with others
Humanitarian intervention – but when & how?
Discussing science on social media
August ’15 – NZ blogs sitemeter ranking
Australian census religion question – progress
In the end, it came down to the science in Denver
Subverting democratic consultation on the fluoride issue
Religious instruction scrapped from school curriculum in Victoria
Alternative reality of anti-fluoride “science”
What is life?
Anti-fluoride propagandists get creative with statistics
Fluoridation: Connett’s criticism of New Zealand research debunked
Fluoridation: Connett’s naive use of WHO data debunked
Time to give up on Sitemeter
70th anniversary of first use of atomic weapon against civilians
Connett misrepresents the fluoride and IQ data yet again
Fluoridation: Newsweek science journalism bottoms out
July ’15 – NZ blogs sitemeter ranking
The bureaucratic solution to a problem
Fluoridation: “Sciencey” sounding claims ruled unacceptable
Comparing the Cochrane and NZ Fluoridation Reviews
Rapid change in attitudes to marriage equality
Scaremongering and chemophobia
MH17 tragedy: 1 year on
Talk of “mini ice age” bunkum
Progress in removing religious instruction from public schools?
Fluoridation: Beliefs about safety and benefits
Climate change: Our time really is running out
Cochrane fluoridation review. III: Misleading section on dental fluorosis
June ’15 – NZ blogs sitemeter ranking
Cochrane fluoridation review. II: “Biased” and poor quality research?
Cochrane fluoridation review. I: Most research ignored
What is causing warming of the earth?
New science bloggers wanted for Sciblogs 2.0
Gagging of scientists – a common problem?
I wish more people were aware of this
Misrepresentation of the new Cochrane fluoridation review
News media – telling us how to think
Misrepresenting the York fluoride review
Fluoridation: Misrepresenting the “saliva theory”
Something to consider
Fluoridation and horses – another myth
Science and social media in new Zealand
Monday morning proverb
Fake weight-loss study example of wider problem
Calcium fluoride and the “soft” water anti-fluoridation myth
May ’15 – NZ blogs sitemeter ranking
Connett & Hirzy do a shonky risk assesment for fluoride
Making mountains out of scientific mole hills
Don’t expect to see chemical safety data sheets in restaurants
RSNZ Science Book Prize winner – Tangata Whenua
Don’t put all the blame on the Germans – a lesson from World War II
The problem of “Fact-Resistant Humans”
What a nice idea
Water fluoridation effective – new study
Follow the money?
The distrust of science – a task for science communication
We always seem to ignore the causes
April ’15 – NZ blogs sitemeter ranking
Wise words from Carl Sagan
Poor peer review – and its consequences
Connett fiddles the data on fluoride
ADHD link to fluoridation claim undermined again
Commercial and ideological support of anti-fluoride activity
Why is Vladimir Putin so popular in the USA?
Is comfirmation bias essential to anti-fluoride “research?”
The will to find out
IQ not influenced by water fluoridation
Making sense of scientific research
The frustrations of modern technology
March ’15 – NZ blogs sitemeter ranking
Poor peer-review – a case study
The arrogance of science?
New Zealand science book prize – 2015 Short list
ADHD linked to elevation not fluoridation
Anonymous comments on social media
More poor-quality research promoted by anti-fluoride activists
Free download – “Severe dental fluorosis and cognitive deficits”
Are submissions on fluoridation worth it?
Social media and science – the problems and the challenge
A couple of “oldies” inject some sense into international politics
Open letter to Lisa Hansen on NZ Fluoridation Review
February ’15 – NZ blogs sitemeter ranking
Paper claiming water fluoridation linked to hypothyroidism slammed by experts
Dirty tactics by anti-fluoride activists in Taupo
NZ Fluoridation review – Response to Micklen
NZ Fluoridation review – HS Micklen responds to critique
Did business interests interfere with Hamilton’s fluoride tribunal process?
A perspective of distances in space
Download report analysing anti-fluoride attacks on NZ Fluoridation Review
Social health policies, freedom of choice and responsibility
Reality of war for civilians
Stephen Fry not pulling any punches
January ’15 – NZ blogs sitemeter ranking
US meddling in Ukraine behind coup
Sunday reading – Richard Dawkins reads some of his “fan mail”
Is debating with anti-science activists worth the effort?
Six months on – concerns about MH17 investigation
Severe dental fluorosis and cognitive deficits – now peer reviewed
Those evil chemicals
“Internet and social media misinform thousands daily”
“I just know”
The victims of terror
Fluoride Free NZ report disingenuous – conclusion
Spotting Bad Science
October ’14 – NZ blogs sitemeter ranking
December ’14 – NZ blogs sitemeter ranking
The MH17 blame game
Science never claimed to know everything
Special pleading by Philippe Grandjean on fluoride
The inverted ethics of doxxing?
Fascinating and painless chemistry lessons
Did the Royal Society get it wrong about fluoridation?
“Do your own research!”
Dirty politics over MH17?
Cherry-picking and misinformation in Stan Litras’s anti-fluoride article
Today’s fantasy, tomorrow’s possibility
The farce of a “sciency” anti-fluoride report
November ’14 – NZ blogs sitemeter ranking
Creationist ‘audits’ science museum
“Real” experts’ on climate change? Really?
Water fluoridation and dental fluorosis – debunking some myths
Proving anecdotes are reliable
Declan Waugh pushes another anti-fluoride myth
Severe dental fluorosis the real cause of IQ deficits?
Catch 22 in Ukraine
Let’s rely on anecdotes instead!
Standing up to junk science in New Zealand
Declan Waugh claims it’s “clear as day”
Unusual photo of Moon and Earth.
Criminal investigation of MH17 tragedy – where is it at?
There is something about those climate records that keep getting broken
Putting politicans in their place on climate change
Malaysia Airlines Flight MH17 – what really happened?
Fluoridation – a racist conspiracy?
Curiosity’s historic comet photo
When science deniers turn to science
Fluoride debate: Second response to Rita Barnett-Rose – Daniel Ryan
Fluoride debate: Response to Daniel Ryan’s critique – Rita Bartlett-Rose
Fluoride debate: A response to Rita Barnett-Rose – Daniel Ryan
Fluoride debate: The scientific evidence against fluoridation – Rita F. Barnett
Another legal defeat for NZ anti-fluoridation activists
Anti-fluoridation propagandists promoting shonky “review”
How to change your Mind – and why it is good for you
The science and politics of climate change
Science and belief
September ’14 – NZ blogs sitemeter ranking
Peer review of an anti-fluoride “peer review”
The information war – The NZ Listener takes up arms
MOM “a thousand times better than cricket”
Activist’s anti-science adverts found misleading – again
Don’t you get tired of this?
It’s time we did something about sugar
Crude dredging of the scientific literature
Anti-fluoride activists define kangaroo court as “independent”
MH17 – Preliminary report leaves most conspiracy theories intact
Do you prefer dental fluorosis or tooth decay?
Emotion Drives Decision
Ingested fluoride, dental health and old age
August ’14 – NZ blogs sitemeter ranking
Sad news – Victor Stenger has died
Making money out of fanatics
Dirty politics on the Royal Society fluoride review
Review finds community water fluoridation safe and effective
Anti-fluoride activists unhappy about scientific research
The Mind of the Science Denier
Open letter to Jane Nielson – a “fluoridation convert.”
Accidental Renaissance – or intuition?
Tactics for science denial
Natural News comes out with a load of heavy metal rubbish on fluoride
July ’14 – NZ blogs sitemeter ranking
Declan Waugh continues his distortion of Finnish fluoride research
Another fluoridation whopper from Declan Waugh
I am still waiting for my cheque
An answer to the anti-fluoride critics – in one image
Some answers to the confusion about the #MH17 crash site
Informed parents know water fluoridation is good for their children
Making political capital out of the deaths of innocents
Elected officials must ignore activists and listen to own voters
The irony of some peer-review and citation complaints
Ken Ring pontificates on climate change
Anti-science US Congressman on House science Committee!
“Creative” reporting of fluoridation science
What happens when fluoridation is stopped?
June ’14 – NZ blogs sitemeter ranking
Controversial IQ study hammered in The Lancet
New group challenging the anti-science brigade
Fluoridation: what about reports it is ineffective?
Approaching scientific literature sensibly
Declan Waugh’s misinformation on fluorosilicic acid
A healthy attitude towards quantum mechanics
An open letter to Declan Waugh – new mechanism for fluoride toxicity?
Toxicity is in the dose or concentration of fluoride
Councils and scientists targeted by anti-fluoride activists
Lugansk – a modern Guernica?
Inna Kukuruza – “her eyes spoke to the whole world”
Connett’s hypocrisy on fluoride & IQ
May ’14 – NZ blogs sitemeter ranking
Confirmation blindness on the fluoride-IQ issue
Where do teeth come from? The stork theory
There is research and there is “research”
Fluoridating water does not lower IQ – New Zealand research
Fluoride and IQ – once more
Another anti-fluoride myth in the making
A balanced debate
It’s all the fashion in Ukraine
Fluoridation: What a difference a year makes?
Wishart misrepresents fluoride science to advance his extreme ideology
Fluoridation: emotionally misrepresenting contamination
April ’14 – NZ blogs sitemeter ranking
Peer review, shonky journals and misrepresenting fluoride science
Ingested fluoride is beneficial to dental health.
Anti-fluoridation advertising deceptive
Fluoridation: putting chemical contamination in context
The first victim!
An outdated tax anomaly – charitable status of relgion
Declan Waugh scaremongers over fluoride – again
Arrogance of ignorance?
Pandering to anti-fluoridation campaigners
International cooperation in space serving humanity
Is anyone listening?
March ’14 – NZ blogs sitemeter ranking
Scientific cooperation despite political posturing
Fluoridation returns to Hamilton City.
European border changes over 5000 years
Dental fluorosis: badly misrepresented by FANNZ
What makes something right or wrong?
How do we know what is true?
Cherry-picking and ring-fencing the scientific literature
Fluoride and heart disease – another myth
Graphic information in science
Corporate backers of anti-fluoride movement lose in NZ High Court.
Terry Pratchett making sense
Fluoride and the 5 easy steps of a conspiracy theory
February ’14 – NZ blogs sitemeter ranking
Pseudoscience in your supermarket
Another god debate
Repeating bad science on fluoride
Truth about those science fairs
Quality and selection counts in fluoride research
The precautionary principle
How can scientists use social media?
Curiosity sees a familiar “evening star.”
The fluoride debate – what do the experts say?
January ’14 – NZ blogs sitemeter ranking
Entertainment is brain exercise
Download The Fluoride Debate
Determining scientific knowledge by petition
Fluoride debate: Final article – Ken Perrott
Fluoride debate: Paul Connett’s Closing statement
The good(?) old days of scientific writing
Most of us missed this one
False balance and straw clutching on fluoridation
Who is funding anti-fluoridation High Court action?
Astro-turfing for scientific credibility
Losing trust in religious leaders
Conspiracy theorists misuse analytical evidence
All things bright and beautiful
December ’13 – NZ blogs sitemeter ranking
Fluoride debate: Ken Perrott’s closing response to Paul Connett?
Putting vaccination risks into context
Fluoride debate: Arguments Against Fluoridation Thread. Part 8. Paul
Alan Turing receives royal pardon
The true meaning of Christmas
Where is the heat going?
Fluoride debate: Response to Paul’s 5th article
Back to the moon!
Fluoride debate: Arguments Against Fluoridation Thread. Part 5. Paul
Census 2013 – religious diversity
Fluoride debate: Response to Paul’s 6th article.
Testing the God theory
Fluoridation debate: Against Fluoridation Thread. Part 6.
November ’13 – NZ blogs sitemeter ranking
‘The particle at the end of the universe’ wins Winton Prize
Fluoridation debate: Why I support fluoridation – 2nd reply to Connett
Psychics have it easy these days
Fluoride Debate: Why I support fluoridation – 2nd response from Connett
From dental neglect to child abuse?
Fluoride Debate: Why I support fluoridation – response to Connett
Fluoride debate: Why I support fluoridation – Response from Connett
Word of wisdom, and otherwise
Have local climate pseudosceptics come to the end of the road?
Fluoride debate: Why I support fluoridation
Sin is relative
Fluoride debate – I get email
Fluoride debate Part 1a – response to Connet’s response: Perrott
Fluoride debate – some housekeeping
Fluoride debate Part 1a – response: Connett
October ’13 – NZ blogs sitemeter ranking
Fluoride debate Part 1: Perrott
Fluoride debate Part 1: Connett
The fluoride debate – introduction
The origins of ethics and violence
What’s really true?
Anti-fluoridation porkies – Mullinex’s rats
Science and faith
NZ climate change “sceptics” abandon appeal
Christianity has hijacked human values
Fluoridation: Hangout with the University of Waikato
The universe – it is bigger than you think
Our Far South – time we learned about it
Christian ethics and Peter Singer
Fluoride – friend or foe: a lecture
Cyber bullying of science
Fluoridation: the hip fracture deception
September ’13 – NZ blogs sitemeter ranking
Tim Minchin – an inspirational speech to graduates
Jon Stewart interviews Richard Dawkins
Anatomy of an anti-fluoridation myth
NZ experts deplore anti-fluoridation misrepresentation of science
Helping kids to wonder
Fluoridation – the IQ myth
When politicians and bureaucrats decide the science
Welcome counter to scientific and health misinformation
New “evidence” for global cooling?
Phobos eclipses the sun – as seen by Curiosity
Dentists you can trust?
Activists peddle chemical misinformation for fluoridation referenda
August ’13 – NZ blogs sitemeter ranking
Cherry picking fluoridation data
Anti-fluoridationist astro-turfing and media manipulation
Anti-fluoride activists attempt to silence science
Crazy ideas and “supernatural” phenomena
Experts speak out on fluoridation
Fluoride sensitivity – all in the mind?
Earthquakes and twitter
Cyber-bullying – what’s with sunscreen?
Anti-fluoridation study flawed – petition rejected
News media influences public trust in science
The “consensus message” in communicating science
Hamilton – the water is the problem, not the fluoride!
Topical confusion persists
Celebrate your curiosity – one year on
July ’13 – NZ blogs sitemeter ranking
Is this the way to reorganise science?
The limits of science and a world record
Water treatment chemicals – why pick on fluoride?
Are you qualified to discuss God, Heaven and Hell?
The Galileo fallacy and denigration of scientific consensus
A new Cosmos
Michael Mann’s defamation lawsuit on track
Is fluoridated water a medicine?
Debunking anti-fluoridation myths
Source of moral authority has shifted
Fluoridation – an organised campaign to misinform.
Hamilton gets its fluoridation referendum
Not your usual rocket launch
Fluoridation – topical confusion
Communicating climate science – Michael Mann comments
Fluoridation and conspiracy theories
Richard Dawkins learns about the Bible
Fluoridation – the violation of rights argument.
June ’13 – NZ blogs sitemeter ranking
The victim mentality of conspiracy theorists
Poisoning the well with a caricature of science
Fluoridation petition – for Hamilton citizens
The importance of books for kids
Fluoridation – it does reduce tooth decay
Stop feeling guilty
Getting a grip on the science behind claims about fluoridation
Is fluoride an essential dietary mineral?
Will Hamiltonians finally get a voice on fluoridation?
Scientists, political activism and the scientific ethos
Fluoridation – are we dumping toxic metals into our water supplies?
When science is under attack
Tactics and common arguments of the anti-fluoridationists
Hamilton City Council reverses referendum fluoridation decision
Global warning in science fiction
May ’13 – NZ blogs sitemeter ranking
Peter Singer on effective charity
The science of consciousness
Collapse of Arctic sea ice
An eReader breakthrough?
Singing about the periodic table
Black cat in a dark room – and the role of science
A New Zealand climate change pseudosceptic apologises!
Pseudosceptics are at it again – misrepresenting and attacking climate scientists
Chris Hadfield’s 5-month Space Mission in 90 Seconds
Confusion and distortion – has global warming stopped?
“Incontrovertible” is it, Rodney?
Video coverage of astronauts’ return to earth next Tuesday morning
A beggar’s market?
The limits of philosophy
April ’13 – NZ blogs sitemeter ranking
‘The Unbelievers’ and science
A global warming hoax meme is born – in New Zealand too!
Friday follies – what happened to the “official AGW hypothesis?”
Fiddling with census figures for religion in New Zealand
The beginning (of the universe) for beginners
Terrorism and the West’s obsession with oil
Marriage equality, retribution and moral progress
A sombre night in Boston
Moving into the mainstream – on the coat tails of the “New Atheists”
Thatcher, Monckton and Pinochet
Potty Peer in Waikato
New Zealand Blog ranking Montage
What is global temperature?
I was wrong about Lord Monckton
New “Hockey Stick” but same tired old denial
March ’13 – NZ blogs sitemeter ranking
April Fools and Agenda 21
Christchurch from space
A war between religion and science?
Climate contrarians/deniers are cherry picking again
Dishonesty of intelligent design “research”
Something for all those lapsed catholics
Dawkins’ new book
Our world from the International Space Station
Creationists prefer numerology to real scientific research
Talking sense about morality
Extreme confirmation bias in action
Greedy Lying Bastards
Those arguments against marriage equality
Census 2013: That religion question
Climate change is not simple
February ’13 – NZ blogs sitemeter ranking
A sensible Christian perspective on Peter Singer
No immutable truths, no eternal dogmas
Global climate – and your grandchildren
Entertaining – and the science is good
The truth about the hockey stick
Origins of religious ethics and violence
Sean Faircloth, Director of Richard Dawkins Foundation, visiting NZ
The Russian meteor – what we know
Should we be prepared?
Does religion blur understanding of evolution?
The “dynamic duo” of science?
A day for cheap shots
Science as the best, possibly only, way to truth
The reality of cancer
Education should never validate ignorance
“Divine commands” and personal conscience
January ’13 – NZ blogs sitemeter ranking
Is your region warming?
No cause for alarm – if you cherry pick
The political alarmism behind climate change denial
Can philosophers, or anyone, tell us what is “right” and “wrong”?
History of science – for Kiwis
What a shock!
Who is guilty of misusing science?
Deconstructing climate change, and its deniers
Amazing photos of Shuttle Endeavour flight deck
Australia’s “New Normal?”
Going beyond the evidence
A time for hypocrisy
Historians and sociologists just as human as scientists
December ’12 – NZ blogs sitemeter ranking
A problem with logic
Historians and sociologists lecture scientists – about science
Wonders of Life coming – we hope
A dose of reality
Pulling the wool over the eyes of the faithful
Scientists and philosophers discuss morality and meaning
Christmas present from NASA
At last – Moving Naturalism Forward videos
Getting the Book Invented
Sense on evolutionary psychology.
Does science have a cognitive privilege?
Sceptical humility and peer review in science
Cancer – an emotional rollercoaster
Sceptical arrogance and evolutionary psychology
And now for a bit of drama
Agreement polar ice sheets are melting
November ’12 – NZ blogs sitemeter ranking
Regarding women as animals
Christmas present for nerds – what about science books?
Time for philosophical honesty about Darwin
Religion in schools – a sensible approach
Climate change deniers don’t understand expertise
The arrogance of supernatural privilege
Morality and non-human animals
More damage from megastorm Sandy
Capturing kid’s minds with emotions
That particle again
Who were Stalin’s victims?
Reports from the Moving Naturalism Forward workshop
The elephant in the US elections
October ’12 – NZ blogs sitemeter ranking
Sex, Death And The Meaning Of Life. Episode 3: Meaning
Who are these “credible experts”?
The mini-iPad and original sin
Death – part 2 of a series
Beer, anxiety and depression – their origins
Why (some) Christians support discrimination
Sex, Death And The Meaning Of Life – Sin
Moving Naturalism Forward
A concise summary of climate change – science and politics
From evolution to belief
Are you offended yet?
This has to stop
Sneaking in the magic man
Naturalism and science are incompatible
None so blind
A Kiwi makes it to Mars!
September ’12 – NZ blogs sitemeter ranking
The most important place you didn’t know about
A useful map of the human body
The paradoxes of theological gullibility
The internet – Yeah, right!
US air traffic on a typical day and on September 11, 2001
Finish the sentence . . .
People saying stupid things on the Internet
Another anti-science attack on Mann fails – but the lies continue
Secularism – its internal problems
Politics and economics of Arctic ice loss
Internet silos become ideological ghettos
Climate change denier’s false “deep distress” fools no-one
Changing that light bulb while in denial
High Court ruled on integrity – not science
New Zealand climate change denial defeated
I don’t know!
Making giant flowers out of fireworks
Moral evolution in today’s society
August ’12 – NZ blogs sitemeter ranking
Drifting moral values
Subjective morality – not what it seems?
Objective or subjective laws and lawgivers
Neil Armstrong by Buz Aldrin
The science philosophy “conflict”
Making sense of religion, science, and morality
Kiwi science fiction with a message
Science – the greatest story ever told
A sundial on Curiosity?
Scientific shift work
Cynical evangelisation of children
Curiosity requires patience
Going for gold – on Mars
A load of science
July ’12 – NZ blogs sitemeter ranking
NZ Blog Rankings FAQ
So scientism = non-theism?
Saying it with flowers
What really happens in religious instruction classes?
What Is Life? From Schrödinger to Watson to Venter
Their mission – values or advancement of religion?
The story behind the High Court action
Ethical enquiry or moral instruction?
Scepticism, denial and the high court
William Lane Craig’s philosophy – the condensed version
So you think science has a problem?
Peter Singer on the misrepresentation of Peter Singer
Human values are secular
End of life decisions
Why the Higgsteria?
Cost of scientific research – and political naivity
The creationism controversy – a summary
Is there room for religion in science?
June ’12 – NZ blogs sitemeter ranking
Scientific knowledge should trump “belief”
Seven Minutes of Terror
Australian census confirms healthy trend
Science is messy – for girls too!
Print-on-demand books – what’s the hold-up?
How to write a best-seller!
Sharp increase in “nones”
A disciplined discussion
What did Galileo ever do to you?
Gnu bashing once again
The prejudiced journalist
Do atheists need religion?
Mixing values and Jesus in secular education
The Scamtific Method
May ’12 – NZ blogs sitemeter ranking
Scientific knowledge – reliable but not certain
Weather extremes and climate change
“Web monkeys” and science presentation
Dementia – There’s an app for that!
Give them enough rope . . .
Why won’t Inland Revenue subsidise my life expenses?
Human morality is evolving
So you’re considering switching to eBooks?
Welcome to the Anthropocene
Naturalism in science
“Lose” your faith, gain your life?
What’s in store for eBook readers
Heartland ignorant of public relations – let alone science
Belief and morality
What has science ever done for us?
April ’12 – NZ blogs sitemeter ranking
The problem with philosophy
Puddles and “fine-tuning”
Great science talks in Auckland
Science denial is a diversion from the real problems
When the “best explanation” is the worst explanation
Toss out the moderator for a better discussion
Jesus heals – but not cancer!
Emotional time for Shuttle fans
Catholic popes victims of sexual abuse!
Who is committing fraud here?
Morality and the “worship” of reason
The silliness of a self-proclaimed “investigative journalist”
Moral behavior in animals
Conservatives, liberals and purity
The trouble with physics?
Is God incredible – or what?
Science and the folly of faith
March ’12 – NZ blogs sitemeter ranking
Another lousy photo of the sun?
The Sand Creatures
A fuzzy photo of the sun
The “public square” myth
Yes, please try this at home!
Whanganui District Council comes to senses
“Good faith” science – and its enemies
Climate change controversy in context
Shy climate denier in “science team” reveals himself.
The chickens are hatching
February ’12 – NZ blogs sitemeter ranking
The size of things
Theological pretzel twisting
A universe in an eBook (or app)
Souvenirs for scientists
Heartland Insitute gets mail
Heartland’s climategate – and Mann’s book
Bioluminescence in space!
Defeat for imposed prayer
ID research and publications
Theological mental gymnastics over evolution
“What, me worry?” – distorting climate change data
Free will – problems of definition
January ’12 – NZ blogs sitemeter ranking
The scientific method – what about the philosophical method?
In the front lines of the “climate wars”
Who is funding the climate change denial groups?
Our fingerprints are all over it!
The [in]compatibility of science and religion
Comprehending reality – Should we give up so easily?
Nothing is something
Who drives the science/religion conflict?
Choosing your religion
Open letter across the barricade
New book formats
The argument from authority (or lack thereof)
December ’11 – NZ blogs sitemeter ranking
Peter Jackson – Satan’s Little Helper”
“Other ways of knowing” and their result.
Slaughtering some sacred seasonal cows
Reacting to a death with respect and hatred
Christmas present ideas: This Hell would be useful!
Higgs and homeopathy
Christmas gift ideas: Aussie wisdom
Christmas gift ideas: The human mind – a history
Christmas gift ideas: Evolution of gods, morals and violence
Christmas gift ideas: Working on Mars
Christmas gift ideas: One for the kids
Christmas gift ideas: Why we deny climate change
Christmas gift ideas: Thinking of our grandchildren
Christmas gift ideas: How We Know What’s Really True
Christmas gift ideas: Kids – it’s OK to be different!
A debunking handbook provides lessons in science communication
November ’11 – NZ blogs sitemeter ranking
Finding out about the astronomers who found the universe
Climategate 2.0 and “toecurling” journalism
It’s crowded up there
Creative science writing
Royal Society’s science book of year Winton Prize winner.
Reclaiming ‘intelligent design’
A lesson in human logic
Is Keith Ward really that naive about science?
Demolishing Craig on morality
Cultural effect of The Big Bang Theory
Answer simple question – win an iPad
New Zealand in good company. Pity about the USA
October ’11 – NZ blogs sitemeter ranking
What’s your number?
Concern over William Lane Craig’s justification of biblical genocide
Outsourcing moral decisions to justify genocide
New Zealand happy – some preachers upset!
The never ending battle
Having it both ways
Ranking human conflicts and tyrannies
Dawkins responds to a stalker – Craig gets his debate
Avoiding possible catastrophe – even if you are confused
You CAN be good with God!
Big money behind local climate change deniers?
Historians of science sometimes miss the wood for the trees
Approaching morality scientifically
Ethicists have problems with ethics!
The climate change denial machine
How do you know that?
How We Know What’s Really True
Problems with pdf eBooks – metadata issues
September’11 – NZ blogs sitemeter ranking
Compulsory payments for advancement of religion – let’s get rid of that.
Some recent recommended science books
Art in science
Where have we been?
Rings around Uranus
William Lane Craig’s “logic”
Science and the “supernatural”
Empathy for colleagues
Approaching a Middle East peace
Atheists aren’t shrill – just disgusting?
What’s this about cosmic rays and global warming?
Making life from the primordial soup
A fight-back – or simply spite?
Evolution and education – advice for teachers
That’s what I like to see in a young woman!
A reminder of reality’s magic
August ’11 – NZ blogs sitemeter ranking
Religious theology of secularism
Martydom of the priveliged
Another book for the kids
Secular democracy and its critics
2012 Global Atheist Convention – Melbourne
Hitler objects to atheist charge
440 FOI requests in one day! From one person!
There is something about Wellington
Some things for the kids
The blinkered view of politics?
I get email
NZ blog rankings update
Is Monckton good value?
The reality of scientific research
Monckton messes own nest
July ’11 – NZ blogs sitemeter ranking
Videos on morality
Pat Churchland on the science of morality
Breivik’s terrorism and science
Terror in Norway
Atlantis returns home – viewed from ISS
Background Briefing for Mockton’s NZ visit
Science has the real debate
Bias in the history of science
Seven years of discovery
Your chance for a free book
That hacking scandal
Are scientists hostile to religion?
Galileo’s modern critics
Debates in the philosophy of science
Does science lead to secularism?
June ’11 – NZ blogs sitemeter ranking
Personal attacks on climate scientists
A silver lining to Expelled?
Galileo’s revolutionary contribution
Science, religion and respect for meaning
Protecting yourself against bullshit
Clarifying some myths in the history of science
Early history of science
Converting beliefs to “truths”
Ideology and violence
Painless science writing
May ’11 – NZ blogs sitemeter ranking
Waking from a coma!
American Imams supporting evolutionary science
A secular bible
Daniel Dennett on conflict between religion and science
Visible signs of the rapture
The Magic of Reality for young people
Don’t drink the punch!
Working on Mars
A non-theist feast down under!
The chances of Royal Weddings arising randomly…
Designer spin II
What’s special about religious “knowledge?”
Climate change lectures in Auckland
April ’11 – NZ blogs sitemeter ranking
Exposing the pretense of Christian unity
Is there a role for science in morality?
Philosophical justifications for morality
Answering questions on morality
Problems with philosophers and theologians
More on the science of morality
Selling the family silver!
Craig brings some clarity to morality?
Foundations of human morality.
Church rejects power of prayer!
Limits of logic
Something to celebrate
Advocating or explaining secular moral values?
March ’11 – NZ blogs sitemeter ranking
What is Life? Another Great Debate
The Galileo myths
Beauty, mystery and science
Christianity gave birth to science – a myth?
The implausibility of reality
Is atheism bad for science?
Myths within a myth
Thank goodness for eBook Readers
Theistic science? No such thing
The ethics of exploitation
Blogging for New Zealand
Science Under Attack?
Acceptance of science – dangerous for some
Making sense of Ring gate?
February ’11 – NZ blogs sitemeter ranking
From “Grand Design” to “On Being”
A human response to Christchurch quake
Alan Turing documentary
Taking the census seriously
The future of books – and Santa?
On being philosophical about science
The secular Egyptian protest a good start for a successful revolution
Shonky climate-change denial “science”
Reinterpretation “research” on climate change
A hymn for Darwin Day
Celebrating Alan Turing’s life and achievements
The scientific study of religion
January ’11 – NZ blogs sitemeter ranking
Converging evidence on climate change
eBook “singles” – and the problems
Marie Curie Lecture Series – 2011
Comparing blog visit statistics
Shoddy reporting on “god genes”
The god gene – or is it a meme?
Certainty is useless – a scientific concept
The nature of the science-religion conflict?
“Other ways of knowing” – some sense at last
Culture and the scientific renaissance
Sharing a chemical moment
The moon and the ISS
Secular News Daily – useful source
New views of eclipses
Deriving “ought from is” scientifically?
December ’10 – NZ blogs sitemeter ranking
Science and morality – a panel discussion
A physicist comments on science and morality
A philosopher comments on science and morality
Telling right from wrong – unreligiously
Another local climate change denial meme
Wine and the Watchtower
It’s that time of the year
A handy app for your iPhone, iPod touch or iPad
A philosopher’s Christmas present
Painted into a corner?
Real science – warts and all
WikiLeaks and climategate
2011 – International Year of Chemistry
The “You Can’t Trust Science!” agenda
NASA and old lace
November ’10 – NZ blogs sitemeter ranking
Cutting off your nose for Christmas?
“Other ways of knowing” purpose?
What is the problem?
A victory for secular ethics
The Hitchens – Dembski debate
The joys of eBook readers – the Sony PRS-650 Touch
Secularism is important
Dawkins answers questions
Telling right from wrong?
Can science shape human values?
Some book ideas
The ISS – a decade of growth
October ’10 – NZ blogs sitemeter ranking
The human mind – a history
Check out those climate change claims on the internet
Waking up to morality
Four signs of a stroke
Can the “supernatural” be of any use?
Are ebooks taking off?
Some pesky delusions
Strident, militant atheists?
Why we deny climate change
Attitudes will change. Life will get better
Your computer is the enemy!
Death by stoning for adultery!
Scientific misconduct and skepticgate
Breaking away – an interesting case study
Sam Harris on The Daily Show
Move over – old fellow!
Hawking’s grand design – lessons for apologists?
Arrested moral development.
September ’10 – NZ blogs sitemeter ranking
Treating statistics sensibly
Not about Einstein
Bus adverts a human rights issue
Check out your ancestors
Trust the experts – if they say what we want
The Bible – a book review
A scientific consensus on human morality
Pope Benny’s speech – graphically
Putting the Pope in his place
Popes cunning straw mannery?
Human Evolution and the Organ of Mind
Mind change – a moral choice?
Putting the IPCC in its place?
Mapping modern science
An unnecessary being?
What is matter? What is materialism?
New science blogs in New Zealand
The Grand Design – neither God nor 42
Earth and Moon from Mercury
The Challenge of the Human Brain
August ’10 – NZ blogs sitemeter ranking
Fallout from Hauser affair spreads
A lesson for NZ critics of climate science?
Nicholas Stern to present Robb Lectures
So you want a conversation?
The myth of the noble scientist
The heart of PZ Myers
After NIWA, God?
Marc Hauser replies – acknowledges mistakes
Hauser misconduct investigation – Full text of Dean’s statement
Fallacy of Fine Tuning
A desperate plea to be noticed?
A stormy future?
A sympathetic take on Marc Hauser and the “scientific misconduct” issue
A paper by Marc Hauser retracted – Harvard Magazine
Climate change is complex
A nice little tool for printing blog posts
“God of the surprises”
Recognising good science bloggers and Big Blog Theory winners
It’s politics, not science
July ’10 – NZ blogs sitemeter ranking
Suzan does a mini- Monckton
Evolution of gods, morals and violence
Is and ought
The new science of morality
Science, faith and limits of knowledge
Liability of scientific denialism to political conservativism
Evolution and the Holocaust
Life on the building site
Theological critiques of billboards required
Support John Abraham against Monckton’s bullying
Ways of not knowing
The changing face of science communication
A regular climate science podcast
Climategate – Journalist withdraws and apologises
Making room for faith in science?
Getting straight on marriage
“Climategate” smears found false – Mann cleared
NZ Atheists Swap Buses For Billboards
June ’10 – NZ blogs sitemeter ranking
Religion in public life – two approaches
Ridiculing ridiculous science commentary
Truth getting it’s boots on!
A question of expertise and credibility
Climate scientist’s’ register?
Kids – it’s OK to be different!
Twinning with Venus
Avoiding grown-up discussion
A competition for Aussie science blogs
Apologies would be nice
Historic shuttle launch photos
Australians concerned about tax exemption for cults
Pseudoscience and anti-science nonsense
Science on New Zealand TV
Hot science blogs
May ’10 – NZ blogs sitemeter ranking
Journalists create world’s first artificial news story!
Don’t trust Monckton!
This is scary!
Theological intrusions into science
God, stop ‘playing science’
Why Don’t We Go To Church?
The heart of opposition to climate science
Last chance – almost!
What’s that about global cooling?
Are you threatened by clarity?
Supporting good science communication
We don’t know!
Monckton and Shimkus get silly together
The Dawkins Delusions
Climate change and the integrity of science
Secularism in Australia and New Zealand
Natural selection or domestication?
April ‘10 – NZ blogs sitemeter ranking
Thinking of our grandchildren
Science, values and ethics
Avoiding tax – supernaturally
Climate scientist sues newspaper for false reporting
Climategate, Lord Monckton and Monty Python
Climate change deniers wallets threatened
Climategate summed up
Superstition – inevitable?
Libel Reform campaign continues
RIP Antony Flew
Officially a fake scandal from science perspective
Dangerous science denial
You have to laugh!
A more transparent approach
Orbital debris, the ISS, moon and sun
A space nerd’s Easter
Getting to the truth – gradually
March ‘10 – NZ blogs sitemeter ranking
Climate scientist Phil Jones exonerated
The origins of science?
The rickety bandwagon of climate change denial
Are religious scientists worried about their brethren?
The climate change denial industry
Can science answer moral questions?
Periodic Table of of science blogs
Creationism, climate change and scientific denialism
Open Letter from U.S. Scientists on the IPCC
From Melbourne to Copenhagen
Are science and religion compatible?
Chris Mooney interviews Michael Mann on “climategate”
Science bloggers talk teaching
Great photo of the Solar Corona
Clear science communication
Institute of Physics in hot seat
Climate science for you and me
February ’10 – NZ blogs sitemeter ranking
Richard Dawkins – wrong again!
Freedom of information and responsibility
This game looks familiar
Anti-science lies being exposed – slowly
Deniers distort Phil Jones
New Zealand has bigots too
Belief and social identity
Etiquette for the office global warming denier
NZ blogs sitemeter ranking – February ‘10
Climate change confusion – a conspiracy of sorts
WARNING! People might find us out!
One for the kids
Get your climate change science on the run
Can science solve all problems?
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Good analysis Ken, I suppose we can see why he was not keen to operate with the same level of transparency as what he demands of others.
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Well done Ken. Persistence pays!
Ken, not only are you barking mad but you are barking up NIWA’s tree as well as Richard T’s.
Please refer to NIWA’s methodology for the NZT7 series:-
1) 7-Station Composite Anomaly = Average of anomalies at individual sites where there is data for that year (<7 sites before 1913)
2) 7-Station Composite Temperature = 7-Station Anomaly + Average of 7-Station 1971-2000 climatologies
E.g., for 1909 when there are 4 sites, the 7-Station Composite Temp is NOT the average of the Wellington, Nelson, Lincoln and Dunedin values.
3) The climatologies are specific to the "Reference" stations at each location, which are: Auckland Aero (Auckland), East Taratahi AWS (Masterton), Kelburn (Wellington), Hokitika Aero (Hokitika), Nelson Aero (Nelson), Lincoln Broadfield EWS (Lincoln), and Musselburgh EWS (Dunedin).
Note that for the composite anomaly, there is no attempt to compensate for missing data and the composite is a simple average of whatever data is available..
The composite temperature is treated much differently but again there is no attempt to compensate for missing data before the 4-7 station anomaly average is added to the average of 7-Station 1971-2000 climatologies and even then there is not that much difference to a simple average.
You better get on the phone to Dr David Wratt tomorrow and inform him that the NZT7 is "shonky" and whoever compiled the NZT7 is a "fool" according to your "statistical methods" which consist merely of deleting real data or applying the Hansen method of data invention.. You mention interpolation but is that acceptable across stations? A reference station is for comparison, not for transfer. Within a station history however, interpolation is reasonable but what is the cutoff? 2 years? 3 years? 5 years? But even then, interpolation does not make assumed data any more accurate than a guess.
To compensate for missing data is a an issue that not even NIWA is addressing but if they were, it's a little more involved than your method.
If the NZ geographic area is to be represented then all data is relative to the NZ land mass centre-of-area . If say Masterton was missing data, the only way to compensate is to delete a corresponding value for Hokitika to restore balance in the series, This is assuming that the series is geographically balanced to start with, The NZT7 is unbalanced geographically in 1909, 1912 and 1919. The inclusion of Lincoln should maintain balance about the centre-of-area for when all 7 stations have data, that is if NIWA has got the spatial analysis right (who knows for sure that they have?) because there is a greater area of land in the south.
So you see Ken, compensating for missing data in the case of NZ temperatures is more of a spatial issue than a statistical issue but this does not seem to be a concern to NIWA and its NZT7.
Now I'll leave you to draft your retractions and apologies for quite a list of scurrilous assertions that you've racked up here, It may pay to engage your brain and do a little research before a repeat performance in future because this last effort really displays a lack of acumen and civility.
Richard Cummings – did you read what you wrote?
You are directly contradicting yourself.
2) is misleading because where there is 7 stations available, composite temp is just a simple average of the 7 stations actuals. It is only where there is less than 7 e.g. 1919 that the anomaly method is used but in the case of 1919 the difference is only 0.03 C between a simple average of 6 stations and the method in 2).
So now missing station data is an issue?!?!!??!?. The team just spend the last ten years ranting that you are a holocaust denier if you claim missing station data is a problem. So there you go, you deny the Holocaust.
No anon (johnston?), missing station data is not a problem. It’s a fact of life.
Problems arise when incorrect methods are used to accommodate the missing data. Treadgold’s method was naively wrong. It lead him the an incorrect conclusion.
But fundamentally his mistake was not to allow any scientific scrutiny of his data or methods. His mistake was so fundamental that few scientifically trained people could have missed it.
Until Treadgold releases his data sets and methodology he ought to be treated as a crank and any of his claims dismissed. Simple really.
Plainly not true. After all, the science advisor for NZC”S”C, Chris de Freitas missed it. I expect you to retract and apologise. Oh, wait. You said “few”. Now I see what it takes to be one of the few. We owe the so few so much.
Yes, Doug, this sort of naive mistake does sort of raise issues about the credibility of scientists who lend support to such groups and their propaganda.
I did ask Treadgold if he had any scientific input or review of his “paper”. He originally said no and then waffled when Vincent Gray admitted he had been asked to check the “paper.” (Vincent acknowledged that he should have seen that their rejection of any need for adjustments was wrong).
Treadgold has several times assured me that he has a “science team” but they “wish to remain anonymous.”
Scientists who support groups like this should not remain passive when these sort of errors are made. They should put their foot down and demand retractions, etc.
Not to do so only endangers their own credibility.
Am I missing something here? According to NIWA’s own original spreadsheet, and their later replacement spreadsheet, they calculated average anomalies in exactly the same manner.
In the original 7SS, the years 1853 and 1854 used only one station anomaly: Dunedin. From 1852 to 1855 only two stations were used: Auckland and Dunedin.
The 11SS did the same.
At the top of their new replacement spreadsheet it is clearly written:
“1) 7-Station Composite Anomaly = Average of anomalies at individual sites where there is data for that year (<7 sites before 1913)" as Richard C has pointed out above.
Are you accusing NIWA of shonky science? Have you written to them to complain?
"[NIWA] did not make this mistake. Instead they used a “7-station composite” – effectively a reconstruction based on estimating missing data."
What evidence do you have for this? The spreadsheets I have seen so far do not have infilled data.
I suspect you have misunderstood the 7-Stn Composite Temp field. NIWA calculates that by taking the anomalies they have (eg: four stations for 1909) and calculating the Temperature (not anomaly) by adding the averaged anomaly to the 1971-2000 average. However, it is the Anomaly value that is used in their plot.
At the top of NIWA’s 11-station series is the following:
“NB: The 11-site average is the average over whatever sites were not missing for the year in question”
At the top of the 7SS series is this:
“NB: 7-Stn Composite Anomaly = Average of anomalies at individual sites where there is data for that year (<7 sites before 1908)"
A quick check of the data in the spreadsheet confirms this:
Eg: 1860 Auckland anomaly is 0.81C, Dunedin -1.15C. Average: -0.17C, which is what is listed under 7-Stn Composite Anomaly for 1860.
Surely this is not hard to comprehend?
Ken, it seems you have made a basic and obvious error in this post. You clearly failed to check anything before you posted (a glance at the actual NIWA spreadsheets would have shown you your mistake), and you’ve said some fairly defamatory things about Richard Treadgold.
You should apologise to Richard Treadgold forthwith and retract everything you’ve said in this post.
(Doug Mackie needs to apologise to Chris de Freitas too, for some reason his name was dragged into this.)
“The composite temperature is treated much differently but again there is no attempt to compensate for missing data before the 4-7 station anomaly average is added to the average of 7-Station 1971-2000 climatologies and even then there is not that much difference to a simple average.”
The composite temperature is treated much differently but again there is no attempt to compensate for missing data before the 4-6 station anomaly average is added to the average of 7-Station 1971-2000 climatologies and even then there is not that much difference to a simple average.
(4-7 changed to 4-6)
BTW, how are those retractions and apologies coming along?
I see Gareth Renowden has also published a piece linking to this post.
He really should have checked the data first. I posted the following, but it disappeared into moderation. Maybe it will reappear soon.
I’m afraid it’s actually Ken who must apologise, not only to Richard Treadgold, but also to NIWA and Salinger. It seems he didn’t check – Treadgold actually used NIWA’s methodology. Gareth also didn’t check, and now looks a bit foolish.
A quick glance here:
will show you that both you and Ken have blundered badly with your posts:
A glance at the spreadsheets for the original 7SS, the 11SS and the new NZ7T series all confirm that NIWA calculates average anomalies using data from available sites where others are missing. Which is exactly what Treadgold has done, following their method.
Apologies are in order, I suspect.
When NZC”S”C makes science-based claims I think it is reasonable to assume that they have had their science claims checked by their science advisor, Chris de Freitas.
There are several possibilities concerning the involvement of Chris de Freitas.
a) He knew about the errors before they were published.
b) He did not know because he does not have the skills to have noticed.
c) He did not know because he wasn’t asked by anyone to check the analysis, saw nothing odd about the claims made by an amateur, and chose not to look into science claims made by an organisation for which he is science advisor.
Have I missed a possibility?
The least culpable is c, and in that case I expect he will very soon issue a statement to that effect and will ask NZC”S”C to add a note to future press releases etc to let people know what has and has not been checked for science content so that his reputation is not further damaged.
“Have I missed a possibility?”
Yes, a rather obvious one. There is no error. Read above.
Calm down Manfred and I will take you through this.
1: You have seven sites distributed through the country. the true temperatures at these sites are 10, 12, 15, 9, 16, 18, and 16. The mean temperature would then be 13.33.
But for some reason you only have data for 2 of the sites – say the first 2. Your calculated average would be 11.
Now clearly that data point will be wrong.
You should not include it or somehow estimate the missing data to obtain an estimate of the 7 station average.
2: Now you plot temperature vs time. Most years have temperatures for each station (7) but some have data for less. Some only 1 or 2.
3: In the absence of statistically estimating missing data which gives you the correct plot?
A: All the data points including those which are based on only 1, o 2 or less the 7 stations?
B: Omit the “averages where data includes less than 7 stations?
4: Now if you analyse the two sets of data and get different values for the temperature trend which is more correct.? Where the “averages” with missing data are included or when they are excluded?
5: In your judgement forget about how Treadgold and/or NIWA treated the data. Which in your estimate is the correct method?
I have some figures illustrating this using the 7 station data which I can post – but I am trying to get agreement in principle of how to analyse such data.
Manfred, here is a plot showing the discrepancy between averages of just the Dunedin and Auckland stations compared with the 7 station average ( or composite values). Y axis is 7 station composite – 2 station “average.”
Now – what do you think you should do about the data points based only on 2 stations if your are presenting the plot as a 7 station average?
“Calm down Manfred…”
I’m actually quite calm. I understand very well what you’re saying, and I’ve looked carefully at the spreadsheets and graphs.
I suspect you are not understanding the concepts behind the calculation of anomalies. I suspect this because in your example above you use temperatures.
You need to go away for a while and read up on anomalies, and why they are used to combine temperature histories from spatially distributed sites. You really shouldn’t be posting inflammatory stuff without understanding the very basic concepts – you end up making a fool of yourself and others.
This is climatology 101, or even pre-requisite. I would expect more from someone who claims to be a scientist.
Manfred – I used temperatures here to simplify the situation. I understand the calculation of anomalies and am purely trying to get your acceptance in principle on what is the correct way to handle “averages” based on missing data.
( I only referred in passing to NIWA’s estimation of “7-station composite” in my post because to have described the detail would have lost people).
Can you please answer my question and we can get to anomalies. (I also have a plot using anomalies which shows essentially similar things to the plot above).
OK Manfred – here is the graph representing the problem using the anomalies for the 7 station data. Again this is the 7 station composite anomalies – 2 station “average” anomalies.
What do you think is the best way to handle data points where only a few stations are used to obtain the “average?”
I see you are still confused. OK, this is how it works:
You can’t just average temperatures from sites across a country. Each temperature average will be different. Some will be cooler, some hotter. So you have to baseline them to a common average first. In the case of NIWA they have chosen 1971-2000, but any common period will do. The resultant value is an anomaly.
For each station, if you have annual values, you calculate the average annual value for all the years in your baseline period. Then you subtract this average baseline value from each annual temperature. You end up with an anomaly for that year for that site. Of course, if you’re using monthly or even daily data, then you must calculate monthly or daily anomalies, but you get the point.
You can’t combine temperatures (your example is nonsensical), but you can combine anomalies, since they’re baselined. Is it best practice? Of course not, ideally one wants all 7 station data. But if you’ve only got two stations, and you insist (like NIWA) on using just two stations, then by combining anomalies instead of temperatures you don’t get the problem you’re making such a big deal about above.
Clearly, the NZCSC understood this, and you didn’t.
Remember, NIWA’s 7SS used only one station, then two, four etc. Any criticism of Treadgold’s method is a criticism of NIWA’s.
My apologies, when I wrote “Is it best practice?” I meant “Is it best practice to use only one station?”
Again, Manfred, you seem to be avoid my question on the correct way of handling averages when data is missing. That is the issue.
I understand completely about anomalies and you appear to be attempting diversion away from the principle by a pointless pontification on these. To remove that obstacle to your response my last figure displayed anomalies.
Do you think one should include “average” anomalies based only on say 2 stations in a plot representing 7 stations. And is it valid to calculate trends when there are a lot of data points “averaging” only 2 stations instead of 7?
How do you advise handling this situation?
You appear to be saying “ideally one wants all 7 station data. ” But what if you haven’t? Should you include the poor data or calculate trends by included 2 station averages? Should this be done when there are long periods of missing station data? For example the 60 years shown in the plots of my post?
Missing data is a common issue.
Manfred, I think you need to do some more reading. I think you are getting confused between the 7SS and the 11SS. The original NZTR, the one that Treadgold was complaining about, is a fully composite series – that is, it does not have any missing annual values. The 11SS was produced later, using only sites with a continuous series (i.e. no adjustments of the sort that get RT all huffy). The 11SS does therefore have missing annual values, but it does always have at least 8 station values for most of its length. This is quite different from RT’s so-called composite, which for large chunks is the average of only 2 or 3 stations.
The original spreadsheet for the 7SS (not the latest one) ran from 1853, and looked almost exactly like the NZCSC one, except for unadjusted values instead of Salinger’s.
The 11SS also had missing values, as you state.
Manfred – you are not answering the basic question.
“Remember, NIWA’s 7SS used only one station, then two, four etc. Any criticism of Treadgold’s method is a criticism of NIWA’s.” This is beside the point. Before you can judge either of those people or institutions wrong you need to be clear about the principle.
Is it appropriate to include such large stretches of “averages” which refer to only a few, or even one, station?
“Do you think one should include “average” anomalies based only on say 2 stations in a plot representing 7 stations.”
No, but NIWA did. Therefore to compare with NIWA, it was necessary to copy what they did.
“And is it valid to calculate trends when there are a lot of data points “averaging” only 2 stations instead of 7?”
If NIWA chose to include this data then it is valid, when comparing unadjusted versus adjusted data.
Look at the 11SS. They said “Note that not all stations have annual mean temperature values for all years in 1931–2008.” And yet they calculated the trend using all the data. Are you going to post a criticism of the 11SS?
Generally one uses all the data for the trend. If you want to drop data for legitimate reasons, do so before you plot the graph or calculate the trend.
NIWA chose to use all the data in their graph, but then they chose to highlight only the 1908-2008 trend to confirm their “last 100 years” claim of 0.9C/century. This was inadvisable, since a glance at their graph shows the data declining from 1853 to the lowest point about 1908, which immediately opens them to criticisms of cherry-picking partial trends. Had they correctly plotted the full trend, it would have been less than 0.9C/century.
I see they have corrected this now with their new graph, which only runs from 1909. But the new graph did not exist at the time Treadgold’s graph was published.
In all, I see nothing wrong with the approach adopted by Treadgold, which was to follow NIWA’s lead in order to determine the adjustments.
But all this is diverting from the obvious.
Face it Ken, you stuffed up. Your point wasn’t about the minutiae of trend analysis. Your point was that you thought NIWA had infilled data.
“Notice how Treadgold has calculated the average anomaly value? Simply by taking the average of the anomalies all 7 stations! Even when some data is missing. Even when he has values for only 1 station!
This completely invalidates Treadgold’s analysis.
How did NIWA handle the problem of missing values? In their original presentation of this data (the one attacked by Treadgold in his report) they did not make this mistake. Instead they used a “7-station composite” – effectively a reconstruction based on estimating missing data.”
Yet NIWA did exactly that. They took the average even when they had the value for only one station. They did it for all their graphs. They didn’t infill. You misunderstood the 7-station composite temperature completely. I know, you know it.
Manfred – you say ““Do you think one should include “average” anomalies based only on say 2 stations in a plot representing 7 stations.”
No, but NIWA did.”
Well that’s an admission, isn’t it? You believe this procedure was wrong. (adding “but NIWA did it doesn’t make it right, does it?).
So you accept my argument that it is wrong to include all the early data where only a few stations contribute. That any derivation of trends may be faulty.
If NIWA did this then they are just as wrong. Although, in fairness they calculated averages of anomalies to use as a basis for then calculating their composite temperatures. As they say, where less than 7 station data was available they calculated a composite temperature using the anomalies of the available data. Where all 7 were available their composite temperature was a simple average.
(And, no Manfred, my point wasn’t that you I “thought NIWA had infilled data.” Not at all – I was familiar with the spreadsheet. And effectively they were trying to compensate for missing data by using the Average temperatures from 1971-2000).
It’s not clear from the spreadsheet I have what they then used to obtain data for their plot. (Unlike Treadgold’s spreadsheet it doesn’t include the graph). However, calculating an anomaly from the composite temperature in the normal way would be faulty because it just gives you your original data. (There would be no point in calculating a composite temperature). If they did use that procedure then they were wrong – although I can appreciate that it is one way of handling isolat6ed missing data. A detailed statistical procedure would be better.
However, we now have this data re-examined, and new adjustments worked out independently. In the process the decision was made not to use the early data which was described as unreliable. One reason for this would have been the huge missing blocks of data. A wise decision, I think.
And lets not forget that after this independent analysis the resulting plots was extremely similar to the original one for that same time period.
Which rather exposed Treadgold’s malicious claims, didn’t it?
And Manfred, in all this you have had access to NIWA’s data. I have been asking Treadgold for a year to provide me his data and methods. I only have his spreadsheet now because he mistakenly revealed it in a directory on his blog.
You mean via CliFlo? The same way you do? Or do you mean the 7SS that was published by NIWA online for anybody to download?
It wasn’t an independent analysis. Who performed it? NIWA! Who reviewed it? The BoM! Who said they simply read the report but didn’t look at the data? The BoM!
Still don’t get it, do you?
Oh for heaven’s sake! I give up, you still don’t understand the basics!
I’ve had my say. You try to work it out.
Manfred – I was contrasting the normal availability of data from institutions like NIWA with the denial of access to data and information by Treadgold.
It was an independent analysis. Salinger no longer worked for NIWA. The analysis was done by different people starting from scratch. It appears that you don’t consider honest scientific work as independent.
Actually, Manfred, I don’t think you get it. Could you detail your understanding of how NIWA calculated “composite temperatures” in the original spreadsheet? It’s not completely straightforward but I managed it. And calculation of “average” anomalies for less than 7 station data was involved.
I have worked it out, Manfred. And I think you agree. Using average anomalies for data with missing stations over long blocks of time is shonky. Fortunately that question no longer arises with the NIWA graph as the missing data is relatively isolated.
However, I would still prefer a statistical procedure to handle any missing data – especially as it can be done as part of calculating trends.
It wasn’t an independent analysis. Who performed it? NIWA! Who reviewed it? The BoM! Who said they simply read the report but didn’t look at the data? The BoM!
Manfred, what exactly are you saying here? please clarify any inferences you believe might be drawn from your observation above.
Manfred – my bad. I was looking at the revised 7SS, not the original. You are correct about the earlier data.
However, the report says that the earlier data were removed for precisely this reason, though – that having fewer data points makes the averages less reliable.
Calm down Ken. No need to shout. We realise this must be very very embarrassing to be shown up so badly.
David Parker – what are you on about?
I am certainly not shouting – if anything this thread has gone very quiet since my last reply to Manfred. (And quite frankly I expected more response. Treadgold has stayed away for example).
He seems to have accepted that it was wrong to include such faulty data.
So what’s your beef?
In any case calculating a simple average of anomalies is going to introduce a lot of variation when there a few stations. This would have the effect of masking any trend.
It seems that NIWA’s original strategy (for using earlier data) would have reduced the variation by dividing the sum by 7 (i.e. assuming that the anomalies were zero for the stations with no data).