I am not at all convinced that human emissions of CO2 are adding to global warming.... I remain to be convinced about the theory of anthropogenic global warming.

It is absolutely outrageous that a spin doctor for Labor's NBN Co is being paid $450,000 per annum by Australian taxpayers to promote a company that generates no revenue, has no customers and provides no services to anybody

I am not at all convinced that human emissions of CO2 are adding to global warming.... I remain to be convinced about the theory of anthropogenic global warming.

I do remain optimistic that one day the world will realise that carbon dioxide is more of a friend than an enemy to the earth's flora and fauna, and I do seriously believe that, given the extraordinary complexity of the natural forces controlling our climate, which have done so for millions of years, the only sensible policy response to the natural process of climate change is prudent and cost-effective adaptation.

I have said consistently in my 16-and-a-half years in the parliament, I have always supported the party room's decision and the party room is the ultimate authority on these matters. I don't expect that to change.

Making the documentary was an extraordinary experience and it really hit home to me the quasi-religious nature of this anthropogenic global warming cause. These people really have found religion.

If the question is do people (in the Liberal Party) believe that human beings are the main cause of the planet warming, then I'd say a majority don't accept that position.