I plan on explaining the situation on his evaluation. What he did is used his classroom as a captive audience to advance his agenda. According to him, there is no other side... there is only one way to look at the issue, his way.

And he did this in an Engineering Economy class. As far as I'm concerned, the time spent wasted talking about Global Warming was time that could have been spent teaching us about economics. Maybe the college doesn't care, I don't know. But, they will be informed about the issue.

Either that, or I'll just put something like, "for an economy class, the instructor sure talked about Global Warming a lot... If our instructor's intent was to educate us about his views on the subject? He succeeded. I would have preferred to lean more about economics."

I think I might still have a good enough relationship with him to talk about it over coffee sometime... But, I'll have to watch what I say on the eval if I want that relationship to continue.