Normally the heat of the city (pipes, buildings, body steam) melts any standing snow before the next snowfall – but the Snowpocalypse of 2010 simply dropped so much snow that many piles of it have not yet melted. And now a new snowstorm rolls in, this one not predicted to be as big as the last one, but the snow-on-snow is quite lovely – this new bright white on top of the old dirty.