Out of interest, I consulted the Mac Dictionary for various words.
"denialist" and "warmist" do not exist as yet.
"alarmist" noun 1. someone given to raising alarms, especially without sufficient reason, as by exaggerating dangers, prophesying calamities, etc. –adjective 2. of or characteristic of an alarmist. –alarmism, noun
"denier" noun someone who denies. [Middle English; from deny + -er1]
"climate change sceptic" noun someone who does not believe in or is extremely doubtful about the reality of climate change, especially global warming, or who, while accepting that climate change occurs, does not believe that human activity is a significant factor or that climate change is such as to warrant it taking a prior place among environmental issues and measures. Compare climate change believer. Also, climate change denier, climate sceptic, climate denier. –climate change scepticism, noun
"climate change believer" noun someone who believes in the reality of climate change, especially global warming, and in the importance of taking measures to counteract it, usually also believing, to a greater or lesser extent, that human activity has been a cause. Compare climate change sceptic. Also, climate believer, climate change realist, climate realist. –climate change belief, noun
