Each winter, Siberia comes to Korea. Or rather, the air-mass does. So despite the latitude (37 30, same as Washington DC or Seville, Spain), despite proximity to the sea, despite the endless cloudless days, despite the lack of snow (and thus none of the albedo phenomenon that helps cool e.g. Minnesota in the winter)… despite all these things, the air starts to push down from Siberia and Korea suddenly gets very cold. Actually, still not as cold as Minnesota, this time of year. But cold enough. And it would be nice if there was snow, too. It was about -5 C (about 23 F) when I walked to work today. And colder, walking home.