I saw this poster in a middle school this weekend: [1]

Example of contaminated water/pollution	Example of air pollution
Fish lives in contaminated water Human eats fish High fives friend People die. Spreads and spreads. Stop pollution Japan	Breathes in [smoke from "Japan pollution company" factory] Cough cough cough [Huge group of people] cough! Spreads!

Apparently they're doing a unit on Japan [2] including some on pollution and public heath, but some kids are a little confused.

[1] I was there for a dance event.

[2] There were other posters about Japan, including a set of Venn diagrams with circles for what American kids have, Japanese kids have, and both. There was a lot of variation in what they put down, but every single one mentioned that American kids have five days of school a week while Japanese ones have six. Pretty important to kids.