This is also, of course, inflicting increasing damage on the British economy, to no useful purpose whatever. More serious morally, because it is on a much larger scale, is the perverse intergenerational transfer of wealth implied by orthodox climate change policies. It is not much in dispute that future generations — those yet unborn — will be far wealthier than those — ourselves, our children, and for many of us our grandchildren — alive today. This is the inevitable consequence of the projected economic growth which, on a "business as usual" basis, drives the increased carbon emissions which in turn determine the projected future warming. It is surely perverse that those alive today should be told that they must impoverish themselves, by abandoning what is far and away the cheapest source of energy, in order to ensure that those yet to be born, who will in any case be signally better off than they are, will be better off still, by escaping the disadvantages of any warming that might occur.

However, the greatest immorality of all concerns the masses in the developing world. It is excellent that, in so many parts of the developing world — the so-called emerging economies — economic growth is now firmly on the march, as they belatedly put in place the sort of economic policy framework that brought prosperity to the Western world. Inevitably, they already account for, and will increasingly account for, the lion's share of global carbon emissions.

But, despite their success, there are still hundreds of millions of people in these countries in dire poverty, suffering all the ills that this brings, in terms of malnutrition, preventable disease, and premature death. Asking these countries to abandon the cheapest available sources of energy is, at the very least, asking them to delay the conquest of malnutrition, to perpetuate the incidence of preventable disease, and to increase the numbers of premature deaths.

Global warming orthodoxy is not merely irrational. It is wicked.

This essay is based on the text of a speech given to the Institute for Sustainable Energy and the Environment at the University of Bath.