If you want to maintain a sustainable supply of fish you have to farm the fish, rather than mine them. So putting your money into fishing fleets that are going to exacerbate the problem by over-fishing is not the way to preserve the underlying asset.

I am convinced the prophets of doom have to be taken seriously.

I've got used to criticisms and, naturally, I try to make sure I don't listen to the more extreme ones because most of the people who have taken their rightwing extremist view of my life are people that I've never met.

One of the things that Ive always thought I would like to do is to develop an environmental index. Then people can measure their own environmental performance on an index as they do in other ways.

Isn't the only hope for the planet that the industrialized civilizations collapse? Isn't it our responsibility to bring this about?

Don't accept that you can't make a difference. Because if you can't make a difference, you won't make a difference, and if you put a multiplier on that we will continue on an unsustainable pathway.

We're either going to save the world or no one will be saved.