It's not just that we are dependent on the natural world for our food and for the very air we breathe-which is, of course, the case-and that the very richness of the natural world continues to provide us with all kinds of assistance.
I think there will be radical changes. But I don't actually think that within the next 100 years the natural world will be reduced to rats and cockroaches, nor do I think that the plant world will be reduced to some kind of desert.
You can only get really unpopular decisions through if the electorate is convinced of the value of the environment. That's what natural history programmes should be for.
Natural history is not about producing fables.
Being in touch with the natural world is crucial.