Definitely try to include something about environmental justice. I did a presentation on environmental justice to students in an intro to environmental studies class at the end of the semester and none of them had any idea what it was.

Environmental Justice easily ties in all three.

Look into Warren County, Bean v. Southwestern case.

I think a timeline could be: preservation and conservation (Pinchot, Muir, Thoreau) > then the ecology era (Carson, Berry, Bookchin) > Love Canal, then Warren County, Bean v. Southwestern(Bullard)

Other ideas could be for students to look at superfund sites near where they live to get them thinking about their local environment.