A very nice summary of the "denier" brief by the U.K.'s Nigel Lawson.
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.