You have to steer a course between not appalling people, but at the same time not misleading them.

You know, it is a terrible thing to appear on television, because people think that you actually know what you're talking about.

I like animals. I like natural history. The travel bit is not the important bit. The travel bit is what you have to do in order to go and look at animals.

I am an ardent recycler. I would like to think that it works. I don't know whether it does or not.

I believe the Abominable Snowman may be real. I think there may be something in that.

Until humanity manages to sort itself out and get a co-ordinated view about the planet, it's going to get worse and worse.

Climate change will affect the whole of humanity, while terrorist attacks will only affect a small section of humanity. Of course, you wouldn't say that if you were related to someone who had been beheaded or blown up or murdered. But humanity is facing a very big, slow, long, drawn-out threat, and that is to do with the way the weather is changing and the size of the population.