I love a good ad... especially when its funny and effective. I think the ad below (thanks to Mike C. for passing this to me!) gets thumbs up on both of these criteria for sure! While I am not a environmentalist by any stretch, I think that common sense approaches to educating the average Canadian about how they can help the environment work best in my opinion. I really have no time for the extreme stunts pulled by the "Friends of Tuna" or "Save the Swordfish" groups. Personally, I tune them out and pay them little to no mind.
That is why this video is so powerful. It uses humour ( potty humour is usually effective) to get its point across.
Classic! Now somebody grab a mop!