“Don’t Trash California” Ad

Can you think of a memorable public-service advertisement? They are rare, but here is one that is both funny and effective. It features two scientist types who teach a lesson to a litter-bug citizen. Nicely done.

Update, June 1, 2026:: This post was originally about the radio version of the ad, which is no longer online. But even better, a video version of the ad was posted to YouTube in 2010. I have adapted the link and text accordingly.