Poop is not a pollutant. It's a substance that sustains life and is a key component of the biosphere's life cycle. Thus, there's no point in controlling it, or

Poop is not a pollutant. It's a substance that sustains life and is a key component of the biosphere's life cycle. Thus, there's no point in controlling it, or making sure it doesn't accumulate. (The next time a person in Congress tries the "CO2 is natural etc" gambit, I'd love someone to stand up and ask if that person has stopped wiping their ass.)