A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).



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Ocean Acidification — a little bit less alkalinity could be a good thing

In Brief: The oceans are not acidic, and will not become acidic in the foreseeable future. Many of the fears and alarming scenarios are based on models. Many scary headlines are based on studies of extreme pH values beyond the range of anything realistic.

Incredibly, hundreds of studies show that for pH changes that we are likely to encounter in the next 100 years, there is arguably a net benefit to underwater life if the oceans became a little less alkaline.

Alarming fears about unrealistic ocean pH’s

“Some ocean pH’s studied were so extreme they are only seen on Star Trek”

Studies of how marine life copes with less alkaline conditions include many experiments with water at pH values in a range beyond anything that is likely on planet Earth — they go beyond the bounds of what’s possible. There are estimates that the pH of the ocean has shifted about 0.1 pH unit in the last 200 years, yet some studies consider the effects of water that is shifted by 2 or even 4 entire pH units. Four pH units means 10,000 fold change in the concentration of hydrogen ions). That’s a shift so [...]

Unthreaded — and the site will undergo maintenance soon…

Just so you know, at some point soon we will get the first site upgrade in three years, and … (drum roll)… nested comments! There will be a few other improvements too, but largely things will look similar. It has been a couple of months of work, behind the scenes, to upgrade my sometimes quixotic CSS code.

But if the site goes down, or you are not able to add comments for a while in the next few days, it is probably maintenance.

Apologies for the inconvenience.


Black Day for free speech in Australia: Bolt loses case

Bolt loses and so do all whites, aboriginals, and every citizen of Australia.

News: The ABC

Andrew Bolt has been found guilty of causing “offense”.

Journalist and political commentator Andrew Bolt has been found guilty of breaching the Racial Discrimination Act over two articles he wrote in 2009.

Bolt was being sued in the Federal Court by nine Aboriginal people including former ATSIC chairman Geoff Clark, academic Professor Larissa Behrendt, activist Pat Eatock, photographer Bindi Cole, author Anita Heiss, health worker Leeanne Enoch, native title expert Graham Atkinson, academic Wayne Atkinson, and lawyer Mark McMillan.

I now know that I can’t speak freely on some topics, even if I thought what I said — uncovering unspoken truths or awkward facts — would help that minority group. Aboriginal people face many challenges. How can their lot be helped by shutting down discussion?

If drawing attention to problems, to try and find a solution “offends” some Aboriginal people, by law, now it must not be spoken. Aboriginal people who struggle are thus more likely to continue to suffer if the answer to their pain involves speaking some truth that doesn’t make 100% of them happy. What a curse to bestow upon any [...]

The submission I would have made if they had a sense of humour

Submission on the clean energy bill [...]

Deceiving the people…

Every Australian ought to read the Ergas article in The Australian. For non-Australians, it’s a case-study of just how thin and fragile all our democracies are. The government was elected NOT to do this. The Treasury are paid to provide their modeling and assumptions to the Australian people but they won’t. The Labor Party is planning to put in the crippling legislation that can’t be unwound, even if 99% of Australians wanted it to be.

No, this is not a master plan to destroy the country, it’s just filthy ambition — to rule at all costs, the nation be damned. The ALP doesn’t particularly want to sacrifice itself over the Carbon Tax, but in clawing for every tiny election advantage  (No, you can’t campaign to remove the toxic tax!) they are resorting to breaking unspoken principles of western democracies and revealing something they normally hide in their darkest recesses: their naked disdain for the citizens. It’s the end result of crumbling standards of ethics in parts of the public service, and a lack of intellectual debate within the Labor Party.

A mortally wounded, weak government, is a dangerous creature.

Where would we be without The Australian?


Lies, deception and [...]

How to get expelled from school — Ian Plimer’s new book

I am annoyed with Ian for coming up with a brilliant book title, and I can’t steal it. All the same, I am looking forward to reading it. You can order the book now for its release in November.

Actually, the serious point here is that I am getting reports from parents of students at environmental “science” courses at university level and at high schools, who are not allowed to question their masters without a payback. This is the perfect thread for those discussions of how our education system is being influenced by activists. — Jo

how to get expelled from school $29.95

A guide to climate change for pupils, parents and punters

Ian Plimer Foreword by Václav Klaus, President of the Czech Republic

RELEASED DATE: November 2011


Download an order form

Are pupils, parents and the public being fed political propaganda on climate change? Now is your chance to find out. Professor Plimer gives 101 simple questions with answers for you to ask teachers, activists, journalists and politicians. The climate industry adjusts the temperature record and withholds raw data, computer codes and [...]