I'm especially involved, for example, in the Richmond Environmental Centre. That's one of those things you can hardly say no to.
It's very easy to say everything is outrageous. But if you have an oil company that's setting up its own environmental department, for example, what do you do? Do you spit in its eye, or do you make sure that what they do actually has some substance?
One in eight plant species face extinction.
All our environmental problems become easier to solve with fewer people and harder - and ultimately impossible to solve - with ever more people.
All we can hope for is that the thing is going to slowly and imperceptibly shift. All I can say is that 50 years ago there were no such thing as environmental policies.
I have no doubt that the fundamental problem the planet faces is the enormous increase in the human population
The fundamental issue is the moral issue.