If I can make programmes when I'm 95, that would be fine. But I would think I'll have had enough by then.

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.

Being in touch with the natural world is crucial.

You'll find people where their conditions aren't changing in any way, its rather rare for them to be happy.

I'd like to see the giant squid. Nobody has ever seen one. I could tell you people who have spent thousands and thousands of pounds trying to see giant squid. I mean, we know they exist because we have seen dead ones. But I have never seen a living one. Nor has anybody else.

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

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.