It can shut down important policy debate:
The moralisation approach undermines itself since it frames climate change narrowly in terms of righteousness. Inevitably deliberation about action gets bogged down in an interminable blame-game about what justice requires – who had their industrial revolution first, etc. Furthermore, the moral duties of different actors do not all point the same way: poor country governments have a clear and over-riding moral duty to help their citizens achieve the high quality of life which the West takes for granted, and which is inevitably energy (carbon) intensive. And then there is the practical economics: the world still has lots of coal, especially in the poor world, that can produce electricity at 3c per kwh (which renewables cannot possibly compete with without radical technological breakthroughs, even with the strongest moral rhetoric). No comprehensive global political solution to greenhouse gases is possible. We need to go back and think again.
The Dish 