When we say the climate is changing, we do not mean that man-made global warming is destroying planet Earth. We mean that the climate of intellectual opinion is changing rapidly. Take Professor Judith Curry of the school of earth and atmospheric sciences at the Georgia Institute of Technology. Writing in the Australian, she maintains that: ‘The scientific consensus-seeking process [should] be abandoned in favour of a more traditional review that presents arguments for and against, discusses the uncertainties, and speculates on the known and unknown unknowns.