Also, when you have very many people you only need a tiny number of them to leave litter for it to be a problem.<p>That surprised me though. The few times I&#x27;ve been to the US it was absolutely litter free. I&#x27;ve only been to a very small number of places, and those places probably don&#x27;t have people dropping litter, but after seeing those places it feels weird to me that Americans would leave trash in the wild.<p>Over here (UK) there is trash <i>everywhere</i>. David Sedaris picks litter as a hobby. Or perhaps crusade. He picked so much (and wrote about the experience) that his local council (when he lived in England) named a bin lorry (garbage truck) after him.<p><a href="http:&#x2F;&#x2F;www.bbc.co.uk&#x2F;programmes&#x2F;p0304pdh" rel="nofollow">http:&#x2F;&#x2F;www.bbc.co.uk&#x2F;programmes&#x2F;p0304pdh</a>