What changed in the United States with Hurricane Katrina was a feeling that we have entered a period of consequences.

Making consumer choices that reward eco-friendly products and companies is a great way to start.

Even if we give first priority to the destruction of terrorist networks, and even if we succeed, there are still governments that could bring us great harm. And there is a clear case that one of these governments in particular represents a virulent threat in a class by itself: Iraq. As far as I am concerned, a final reckoning with that government should be on the table.

I don't really consider this a political issue, I consider it to be a moral issue.

Civil disobedience has an honourable history, and when the urgency and moral clarity cross a certain threshold, then I think that civil disobedience is quite understandable, and it has a role to play.

The survival of the United States of America as we know it is at risk. And even more — if more should be required — the future of human civilization is at stake.

The interior of the earth is extremely hot – several million degrees.