The Internets are buzzing with the latest survey showing, among other things, Republicans are split on the Birther issue with only 47 per cent accepting the claim that Obama was born in the US. That’s almost exactly equal to the 48 per cent who agree that global warming exists – it’s evident from the public debate that the overlap between Birthers and opponents of AGW is very high ).

But I wouldn’t want to give the impression that over 50 per cent of Republicans are conspiracy theorists who believe in a secret plot to impose a Kenyan-socialist dictatorship as part of the UN/IPCC system of world government. On the contrary, the proportion is only about 25 per cent (more in the South). As on the global warming issue, the balance of opinion within the Republican Party holds to the sensible “sceptical” position: the science isn’t settled, the birth records are unclear, sightings of black helicopters need further investigation and so on. That’s good to know.