By 2050, the Australian population is expected to grow from 22 million to 36 million. That increase alone will put huge pressure on our towns and our cities. We will need more homes, more roads, more rail lines, more hospitals, more schools, just to accommodate so many Australians.

There are many who criticise the United Nations. And those of us who know this institution well know that it is not immune from criticism. But those who argue against the United Nations advance no credible argument as to what should replace it. Whatever its imperfections, the United Nations represents a necessary democracy of states.

I was elected by the Australian people to bring back a fair go for all Australians. I have given my absolute best to do that.

I'm out there arguing the Labor case. I will do it anywhere and everywhere that I can. I do it within various communities across Australia where I am able to make a positive contribution. And let me tell you, my voice won't be silenced in the public debate because the issue at stake for Australia are so stark.

For Australians, climate change is no longer a distant threat. Our rivers are dying, bush fires are more ferocious and more frequent and our natural wonders - the Great Barrier Reef, Kakadu, our rainforests - are now at risk.

Australia is a nation of compassion. Courage and compassion. And the third of these great values: resilience.

It is unlikely that you'll have anything emerge from MEF (Major Economies Forum) by way of detailed programmatic specificity.