It seems an easy choice - sacrifice the tree for a human life - until one learns that three trees must be destroyed for each patient treated. Suddenly we must confront some tough questions. How important are the medical needs of future generations?

The planet is in distress and all of the attention is on Paris Hilton.

You can say the Earth is flat, but it doesn't mean you're going to fall off the edge.

In the age of the internet, with all of its problems, over time, the very fact that individuals can join the conversation creates the opportunity for the emergence of - for the re-emergence of a genuine conversation of democracy.

It should be lifted above partisanship because it's a question of survival. It's a moral issue.

I feel passionate about solving the climate crisis.

The day I made that statement, about the inventing the internet, I was tired because I'd been up all night inventing the Camcorder.