World is at its hottest since prehistory, say scientists

The world is now hotter than at any stage since prehistoric times, a top climatologist announced last week. His startling conclusion comes as Nasa reported that 2005 has been the hottest year ever recorded.

Dr Michael Coughlan, head of the National Climate Centre at the Australian Government’s Bureau of Meteorology, said: “One probably has to go back into prehistoric times – and way back in them – to be seeing these sorts of temperatures.”