Use of the term ‘climate deniers’ is a shallow and offensive rhetorical device employed to attempt to subliminally influence readers to draw together those who question the veracity of ‘man-made climate change’ alongside that of rampant neo-Nazis who do not accept any Jews at all were murdered in WWII - Holocaust Deniers.
As a matter of sensible precaution I strongly recommend when you spot such rhetoric you fact check every aspect of the item you are reading before you accept any part as meaningful or valid. Otherwise dismiss it as being propagandistic brainwashing.
For a further example of the pro-man-made global warming lobby’s thinking see:
This film was created by vastly successful director Richard Curtis and with the involvement of his ‘partner’ Emma Freud, great-granddaughter of psychoanalyst Sigmund Freud. Her younger brother, Matthew Freud, is the husband of Rupert Murdoch’s daughter Elisabeth Murdoch.