This is why cartoons should stay cartoons.

Him name is hopkin green frog.

I didn't even realize this until recently, but you can buy biodegradable plastic bags. I found them at IGA, but I'm sure they're probably in other grocery stores too. There are certain things that you just have to have plastic for (unless you like garbage juice in your cupboards) so this is a great alternative. They also do little doggie poop bags!