The village of Ilulissat in Greenland is seen near the icebergs that broke off from the Jakobshavn Glacier on July 24, 2013. (Joe Raedle / Getty ) There’s a pretty story we tell ourselves about environmental problems: Once you fix them, they immediately start to improve. Smog works like this. In cities where air quality is a problem, smog tends to worsen on weekdays, because millions of people are
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