Any difficulties which the world faces today will be as nothing compared to the full effects which global warming will have on the world-wide economy.

The whole imposing edifice of modern medicine is like the celebrated tower of Pisa - slightly off balance.

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

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.

One of the main reasons for the conflict in Syria, and the terrorism that it's spawned, is climate change and drought.

When people are uncertain about what is right and what is wrong, and anxious about being considered old-fashioned, it seems to be worse than folly that Christians are still arguing about doctrinal matters which can only bring needless distress to a number of people.

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