Dealing with global warming doesn't mean we have all got to suddenly stop breathing. Dealing with global warming means that we have to stop waste, and if you travel for no reason whatsoever, that is a waste.

I'm a humanist. I'm neither one side nor the other.

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

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.

Fundamentally not to waste energy. If we were all to reduce our demands for energy, it would make an enormous amount of difference.

I'm swanning round the world looking at the most fabulously interesting things. Such good fortune.

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