It is deeply pejorative to call someone a 'climate change denier.' This is because it is a phrase designedly reminiscent of the idea of 'Holocaust Denial.'
Almost everywhere, climate change denial now looks as stupid and as unacceptable as Holocaust denial.
You can talk about Holocaust denial, but it's really marginal for the most part. What is compelling about the Armenian genocide, is how it has been forgotten.
David Irving is under arrest in Austria for Holocaust denial. Perhaps there is a case for making climate change denial an offence - it is a crime against humanity after all.
I see no anti-Semitic implications in denial of the existence of gas chambers, or even denial of the Holocaust.
Denial ain't just a river in Egypt.
Indeed, the field of Holocaust studies is replete with nonsense if not sheer fraud.