Telegraph: Mr Ashton, the special representative for climate change at the Foreign and Commonwealth Office, told scientists they cannot trust politicians and that they have to take better care to couch their conclusions in terms that cannot be misunderstood or go unheard. Mr Ashton issued his warning at the start of a climate change conference held in Copenhagen to discuss the latest scientific findings in the field. Mr Ashton, who trained as a physicist before becoming a diplomat, said …