The answer, some scientists hope, is to tell them how much everyone's dogs' poop weighs, and how much it costs to clean that shit up when it lands where it shouldn't. For instance: There are 8-million dogs in the UK. Guess how much crap they produce on a daily basis. A ton? Fifty tons? Five-hundred tons? No. More. Keep guessing.

Photo Credit: Joshua Ganderson CC BY 2.0

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