My father's generation's crisis was fighting fascism. Ours is fighting climate change. It is much harder because you can't see it, it is not an obvious threat. But the solution is in our hands.

Meat is a wasteful use of water and creates a lot of greenhouse gases. It puts enormous pressure on the world's resources. A vegetarian diet is better.

What we are talking about is extended world war...People would move on a massive scale. Hundreds of millions, probably billions of people would have to move.

Climate change and global poverty are two sides of the same coin. Both challenges must be addressed together. If we fail on one, we will also fail on the other.

Climate change represents the greatest and widest-ranging market failure ever seen

There is still time to avoid the worst impacts of climate change, if we take strong action now.

The scientific evidence is now overwhelming: climate change presents very serious global risks, and it demands an urgent global response.

Adaptation is the only means to reduce the now-unavoidable costs of climate change over the next few decades

If you look at all the serious scientists in the world, there is no big disagreement on the basics of this...it would be absolute lunacy to act as if climate change is not occurring.

Climate change is a result of the greatest market failure the world has seen...We risk damages on a scale larger than the two world wars of the last century.

Science and policy-making thrive on challenge and questioning; they are vital to the health of inquiry and democracy.

Insanity runs in my family. It practically gallops.

The truth is you don't know what is going to happen tomorrow. Life is a crazy ride, and nothing is guaranteed.

That's another piece of advice: Don't go to college; follow your dreams. Unless you're a doctor - then go to college.

I'm endlessly putting myself on tapes for things over in America! I'm always sitting at home, learning lines, sending stuff to America.

Ubuntu is very difficult to render into a Western language... It is to say, 'My humanity is caught up, is inextricably bound up, in what is yours.'

We build our temples for tomorrow, strong as we know how, and we stand on top of the mountain, free within ourselves.

The future is the keeper of the memories of the past

Until we begin to see each other as ourselves, nothing will change. We are one planet.

Certainty is the enemy of change.

When I came back to America, I realized that world music is no joke, it really has a lot to it.