Lubos Motls is a theoretical physicist and is probably classified as a denier. Though, I think this definition is applied too liberally. In his latest blog post he claims there is 1-2 deg of warming per century and this from contributions by mankind (he doesn’t break down the proportion). He doesn’t think the warming will be an issue for 200 years.

https://motls.blogspot.com/2019/12/rss-amsu-acceleration-of-...