Sir, – The warmest seven years on record have all been since 2015, and we have just had the hottest UK day ever (40.3C at Coningsby), so I will not waste time responding to the latest of Guy Liardet’s articles on climate change (NR110/3 p369) with a ‘forensic’ response as suggested by the Editor. Climate change is not “promoted as an existential threat”. The climate crisis is real, and to prolong any discussion about whether climate change is a threat (it has been for decades) is pointless, and looks rather like Nero fiddling while Rome burns. But the article does deserve a response, as it nam…