Yeah, it would make it so you had to legally put a climate change denier on.
So you do a segment that says "here's a scientist with noting to gain from deceiving you and, by legally required contrast, a climate change denying corporate shill whose profit motive in lying to you is jarringly obvious."
You still have the lunatic there to rile up the audience, but you don't ONLY have the audience riling lunatic on.