It is that range of biodiversity that we must care for - the whole thing - rather than just one or two stars.

If I were beginning my career today, I don't think I would take the same direction. Television is at a crossroads at the moment. And although I am not up to date technologically, I suspect that somewhere out there people are conveying things about natural history by means other than television, and I think if I were beginning today, I'd be there.

No, not a feminist. I'm a humanist. I'm neither one side nor the other.

Now, I find that very difficult to reconcile with notions about a merciful God.

To suggest that God specifically created a worm to torture small African children is blasphemy as far as I can see. The Archbishop of Canterbury doesn't believe that.

If we were all to reduce our demands for energy, it would make an enormous amount of difference.

In the West, that's what's happening. The birth rate has been dropping steadily and still is. But there is still a vast amount of the world where that's not the case. And that is where the big population growth is taking place.