Hong Kong has created one of the most successful societies on Earth.

It is now 14 years since I first suggested that organic farming might have some benefits and ought to be taken seriously. I shall never forget the vehemence of the reaction.. much of it coming from the sort of people who regard agriculture as an industrial process, with production as the sole yardstick of success.

We should be treating, I think, the whole issue of climate change and global warming with a far greater degree of priority than I think is happening now.

I learned the way a monkey learns - by watching its parents.

Scientists themselves readily admit that they do not fully understand the consequences of our many-faceted assault upon the interwoven fabric of atmosphere, water, land and life in all its biological diversity. But things could also turn out to be worse than the current scientific best guess. In military affairs, policy has long been based on the dictum that we should be prepared for the worst case. Why should it be so different when the security is that of the planet and our long-term future?

I think we'd be very foolish to expect that we can just import everything from somewhere else and imagine that that's going to last for ever and ever and ever

Climate change should be seen as the greatest challenge to face man and treated as a much bigger priority in the United Kingdom.