Many Liberals are rightly dismayed that on this vital issue of climate change we are not simply without a policy, without any prospect of having a credible policy but we are now without integrity. We have given our opponents the irrefutable, undeniable evidence that we cannot be trusted.

We will certainly have to rethink the way in which we design and protect places where large numbers of Australians and indeed this will happen around the world.

Greece is an extreme case: a country where both the level of spending and the level of taxation were unsustainable!

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.

If you try to come to Australia by boat, even if we think you are the best person in the world, even if you are a Nobel Prize winning genius, we will not let you in.

I do not believe we can effectively move Australia to a lower emission economy, which is what we need to do if we're going to make a contribution to a global reduction in greenhouse gases, without putting a price on carbon.

You will never find a better friend to the United States than Australia.