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.

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

I'm not a propagandist, I'm not a polemicist; my primary interest is just looking at and trying to understand how animals work.

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

Do we really require so many gardening programmes, makeover programmes or celebrity chefs?

We really need to kick the carbon habit and stop making our energy from burning things. Climate change is also really important. You can wreck one rainforest then move, drain one area of resources and move onto another, but climate change is global.

I'm a humanist. I'm neither one side nor the other.