Many individuals are doing what they can. But real success can only come if there is a change in our societies and in our economics and in our politics.

I remember when we were in the World Cup in Australia and I had to win the singles against Tony Payne, best of seven legs, to win it. I was 2-0 down but ended up beating him I suffer much less than many of my colleagues. I am perfectly able to go to Australia and film within three hours of arrival.

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

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

Very few species have survived unchanged. There's one called lingula, which is a little shellfish, a little brachiopod about the size of my fingernail, that has survived for 500 million years, but it's survived by being unobtrusive and doing nothing, and you can't accuse human beings of that.

I find it far more awesome, wonderful, that creation; our appearance in the world; should be the culmination, or at least one of the latest products of 3,000 Million years of organic evolution, than a kind of country trick, taking a rib out of a man's side in a trance.

The idea that the Lord had given us a present, that the world is a gift from God... well, the amount of stuff, back then, that the Lord was giving away was limited. We do not have dominion.