"Iowa's Air, Water & Wildlife are under Attack"
"Out of State Interests Want Dirty our Air & Water"
"Say YES to Clean Water, Say NO to ALEC"
"Sign the Petition"
Moving images of water, kids in water playing, etc....could also use images of wildlife (ducks, geese, etc...). The ads should say "Paid for by Citizens for a Healthy Iowa" as a disclaimer on the ads and should have a clear call to action that says "Sign the Petition" as a button.