But who knows, some years from now if there's a global emissions trading scheme agreement, as many have hoped for, then I'm sure Australia would be part of it.

Do the bishops seriously imagine that legalising gay marriage will result in thousands of parties to heterosexual marriages suddenly deciding to get divorced so they can marry a person of the same sex?

I have always been generous because I know that I have done well in life and I believe it is part of my duty to give back. So I am always been philanthropic.

Climate change is a global problem. The planet is warming because of the growing level of greenhouse gas emissions from human activity. If this trend continues, truly catastrophic consequences are likely to ensue from rising sea levels, to reduced water availability, to more heat waves and fires.

Everything we do as a government is focused on getting help and support for hard-working Australian families. We are standing up for them.

Let us be honest with each other. The threat to marriage is not the gays. It is a lack of loving commitment - whether it is found in the form of neglect, indifference, cruelty or adultery, to name just a few manifestations of the loveless desert in which too many marriages come to grief.

I think Australians are more interested in what I am doing with their money than what I am doing with my own.