You are forgetting environmental "science" and climatology. :)
I realize we're talking college here, but do you know that the intro level science and math courses in many universities, taken by those who are not intending to be science majors, are watered-down dreck ? Take a look at the lower level books used in the universities and you'll see what I mean.
You've got another good point. I went right for the real classes as a freshman, so I missed what many students are indoctrinated with. But my last undergrad class was called global climate or something. I was one credit shy so I had to take a spring class after graduation. It was one of the watered down drivel courses of which you write.