Malcolm Turnbull

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 love radio - its immediacy and especially its intimacy... it is part of your life, whispering into your ear. You can't see it, but equally importantly it can't see you.

Study after study has demonstrated that people are better off financially, healthier, happier if they are married, and indeed, I repeat, if they are formally married as opposed to simply living together.

The question of whether or to what extent human activities are causing global warming is not a matter of ideology, let alone of belief. The issue is simply one of risk management.

We need to recognise that the whole edifice of our fifth estate, of our journalism, has been built on a foundation of newspaper journalism and that that foundation is crumbling. The management of the media companies will deny that the end is nigh. I hope they are right.

I try to talk about policy issues intelligently, I try very hard to avoid thought bubbles. I make sure my speeches are well researched and footnoted. I make sure I am not talking through my hat.

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.

The most effective check and balance on government has been an independent press which maintains its credibility by ensuring that its criticism is balanced and based on fact - based indeed on solid journalistic work.

When politicians offer you something for nothing, or something that sounds too good to be true, it's always worth taking a careful second look.

If Margaret Thatcher took climate change seriously and believed that we should take action to reduce global greenhouse emissions, then taking action and supporting and accepting the science can hardly be the mark of incipient Bolshevism.

China and India will take the global leadership on climate change: they are suffering for it.

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.