Despite recently dismissing one group of IPCC report boosters as:
"The Union of Hysterical Bedwetters"
and delivering a speech to the 2014 Ideacity conference entitled:
The globetrotting tarsandinista's latest WUWT tract confesses that he is a two-thirds true believer in the validity of the IPCC's basic 1.5 degree lower bound on man made climate change:
"In 2001 the IPCC said it was 66% confident we had caused most of the warming since 1950; in 2001, 90% confident; in 2013, 95-99% confident. All of these confidence values are direct lies. For there is no dataset from whose values any such supposed confidence levels can be determined by any recognizable statistical process.AS THE IPCC DEFINITION OF 'LIKELY' IS >66%, AND 1ºC IS >66% OF 1.5º C, DOES THIS UNSEEMLY CONVERGENCE WITH SCIENTIFIC REALITY PORTEND A DAMASCENE CONVERSION, A CONVENIENT MEMORY LAPSE, OR LORDLY INDIFERENCE TO THE CLIMATE FEEDBACK CONSEQUENCES OF RAISING THE SURFACE TEMPERATURE, AND THE VAPOR PRESSURE, OF THE HYDROSPHERE?
My own best estimate, for what little it is worth, is that a doubling of CO2 concentration would warm the world by about 1 Cº, if that. The IPCC is heading – albeit far too slowly – towards the same answer. "