I used to think London or New York could get polluted when it was a little hazy to see the Gherkin or Empire State Building. Then I moved to Sarajevo in December. It makes my lungs feel like I sucked down two packs of cigarettes every time I walk out of my front door.

I will never complain about pollution again (I'm not saying any amount is good, but there are children all over the world living in much worse conditions than London at 17:30).