From Alan Heasman
It was interesting to read about the outcomes predicted by climate models for the year 2100 based on crucial decisions we make now, ranging from starting large-scale geoengineering to continued addiction to fossil fuels (5 October, p 8).
I do, however, believe it is somewhat naive of the modellers to have omitted that in all probability there will be a third world war before the end of the century. That will be the mother of all wars and will certainly change the climate.
Bournemouth, Dorset, UK
