Leonard Smith was part of an e-Roundtable on ‘The Uncertainty in Climate Modelling’ organised by the Bulletin of the Atomic Scientists. He contributed articles entitled ‘In planning for the future, make room for changing forecasts In planning for the future, make room for changing forecasts‘,14 January 2008, and ‘Climate Modelling is still an abstraction of reality Climate Modelling is still an abstraction of reality‘, 10 March 2008.