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

Fast food may appear to be cheap food and, in the literal sense it often is, but that is because huge social and environmental costs are being excluded from the calculations.

My Rainforests Project ... has three main elements. Firstly, to determine how much funding the rainforest countries need to re-orientate their economies so that the trees are worth more alive than dead.

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

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.

There is no doubt that we live in an age of unprecedented, and sometimes terrifying, technological advance where the speed of advance so often outstrips the necessary ethical considerations.

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