With a small fraction of the hundreds of billions of dollars spent on the Iraq war, the US and Australia could ensure every starving, sunken-eyed child on the planet could be well fed, have clean water and sanitation and a local school to go to.

I'm worried about the traditional media, but I think the new media is a plus for democracy.

The reality is that if we in this rich, lucky quarter of the planet cannot make a stand for the 30 million other species we share this planet with, let alone our own species, then who can?

There's a presumption that somehow you calculate beforehand whether something is going to be good politically or not. I simply don't.

The future will either be green or not at all.

I have never met a person in whom I did not see myself reflected.

We people of the Earth exist because our potential was there in the Big Bang, 13.7 billion years ago, as the universe exploded into being.