Between the IPCC Fourth Assessment Report, the on-air demolition of Martin Durkin and, most significantly, John Howard’s self-proclaimed conversion from ‘sceptic’ to ‘realist’ on climate change, I had the impression that delusionism was finally a spent force within the government. It was known that a couple of senior ministers, most notably Ian MacFarlane and Nick Minchin, remained unconvinced, but they seemed willing to keep quiet most of the time. Even the commentariat seemed to be cautiously backing away.

The report of the House of Representatives Standing Committee on Science and Innovation suggests all this was premature. Four of the six government members of the committee (Dennis Jensen Jackie Kelly, Danna Vale and David Tollner) signed a dissenting report denying that human activities are disturbing the climate in dangerous ways, and describing those who accept the mainstream view as “fanatics�. If this is the view of government members who have chosen to serve on a committee devoted to science, one can only guess at how widespread such ideas are within the government.

I plan a piece for Thursday’s Fin looking at all this. Of course, I’m not going to bother with silly talking points about climate change on Triton. The real question here is how such beliefs can maintain a hold, long after the corporate push behind them has evaporated and at a time when they are so obviously a political albatross for the Howard government and for the political right as a whole. The right (at least in Australia and the US) has entered the kind of self-reinforcing pattern of disconnection from reality that long characterised the Marxist left.

Update This report has really hit the big time, making it into the Washington Post. Too much blog comment to list everything, but don’t miss Trevor Cook.

I got an email today from Phillip Coticelli at Africa Fighting Malaria pointing to a study by Donald Roberts (PDF), showing that DDT has a repellent effect in addition to its toxicity. The key finding is that that three out of five DDT-resistant Aedes aegypti mosquitoes avoid huts sprayed with DDT. Roberts argues that this is a reason for preferring DDT to alternative pesticides such as dieldrin. A few points about this are worth making
* First, it’s good to see AFM acknowledging the fact of pesticide resistance, which primarily accounts for the abandonment of large-scale attempts to eradicate malaria-carrying mosquitoes with pesticides. The libel put out by people like Steven Milloy and AFM founder Roger Bate[1], in which it is suggested that the failure of the eradication program was due to a mythical ban on DDT imposed at the behest of environmentalists, who callously caused millions of deaths, depends critically on ignoring resistance.
* Second, although the study is new, the claim is not. Roberts has been arguing the importance of repellent and irritant effects for a long time. And while the reporting of this study suggests that these benefits are unique to DDT, other work by Roberts has found that permethrin and deltamethrin are just as effective in this respect.

How does this relate to the general debate over the use of hut spraying as a strategy to fight malaria?
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