> "he" is not an absolute position that global warming doesn't exist; it's a broad spectrum of opinions ranging from climate deniers to those concerned with the painful impact of treatment that may be widely ineffective.

No, you can't simply shift the ideological division line. Someone who is convinced that climate is changing doesn't believe "CO2 is not a pollutant", regardless of how concern they are with the impact of the treatment, and it's disrespectful to put them in the same bag.