Here's what they published:

Sir, Lord Hunt of Chesterton says that the cold weather is consistent with our expectations of climate change, and that in the UK the trend is likely to be towards colder winters (Apr 2).



This is a surprising claim. The Intergovernmental Panel on Climate Change said in its last report that the lowest winter temperatures are likely to increase in Northern Europe and that the duration of the snow season is very likely to shorten in all of Europe, and snow depth is likely to decrease, at least in most of Europe. Sir John Houghton, Lord Hunt’s predecessor at the Met Office, has declared that we will get less snow, “in line with what we expect from global warming”.



If we are to expect more cold and less cold and more snow and less snow, one is left wondering what kind of weather is “not consistent” with man-made climate change.



