It's easy to understand. It makes you want to recycle, buy used stuff rather than new and totally ruins your day. Yet it opens your eyes and helps you see where you stand and what you can do. A story about where all our stuff comes from, where it goes when we trash it, who has to suffer for it and who makes money out of it. This video is likely to cause a paradigm shift.
I showed this to my Environmental Science high-school students and they were literally yelling at the projector. "Yo! Miss! That's crazy! We gonna die! Why you gotta show us all this depressing stuff? Yo, this is the best class evah!"