I must say that when I first learned of the existence of the Australian Greenhouse Office, I assumed it was responsible for supplying tomatoes to the Parliament House kitchen. But, no, as I soon learnt as industry minister, it was in fact a government funded redoubt of veritable soldiers in a war against carbon dioxide. The zealotry and obsessive passion of these warriors in the battle against the apparent evils of carbon dioxide remains a curiosity to me. After fighting these people for three years as industry minister, I really did wish they would just go away and grow tomatoes.

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.

I am quite surprised and rather disappointed by the loneliness, isolation and indeed demonisation the sadly misunder­stood CO2 is experiencing. Thus, upon leaving the parliament, I am contemplating the foundation of an organisation called 'The Friends of Carbon Dioxide'. Membership will of course be open to all, including the plants whose very existence depends on CO2. I think this organisation's slogan, 'CO2 is not pollution', self-selects. It has both accuracy and melody to commend it.

... as we are being blunt, the fact is that Tony [Abbott] and the people who put him in his job do not want to do anything about climate change. They do not believe in human caused global warming. As Tony observed on one occasion "climate change is crap" or if you consider his mentor, Senator Minchin, the world is not warming, its cooling and the climate change issue is part of a vast left wing conspiracy to deindustrialise the world.

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 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.