I'm against this huge globalisation on the basis of economic advantage.

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.

The process of making natural history films is to try to prevent the animal knowing you are there, so you get glimpses of a non-human world, and that is a transporting thing.

It's a moral question about whether we have the right to exterminate species.

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.

You have to steer a course between not appalling people, but at the same time not misleading them.

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