The ocean is a supreme metaphor for change. I expect the unexpected but am never fully prepared.

I eat green ants often enough. They are wonderful. The trick is to squash them before you eat them, otherwise they bite your tongue and it ruins the experience.

People can make symbolic gestures but doesn't mean their life changes. One philanthropic moment doesn't make a life of renewal; of change.

Nothing is as daunting as the threats associated with global warming. That's the biggie. Everyone bangs on about rising sea levels but the real challenge of a warming planet is ocean acidification. An acid ocean spells the end of life on earth.

There is nowhere else I'd rather be, nothing else I would prefer to be doing. I am at the beach looking west with the continent behind me as the sun tracks down to the sea. I have my bearings.

We live in specific places. We are marked by a place.

Australia was once a leader in taking global warming seriously. The former PM [Kevin Rudd] called it 'greatest moral challenge of our time'. But in the past couple of years the national consensus has been eroded and Australians are being encouraged by the polluters and their mates in Parliament to forget it was ever mentioned. It's heartbreaking.