News from the Geoblogosphere
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Deadly Frozen Smog Closes In On Beijing
Temps in Beijing are running around -5C and visibility is less than 200 meters in places. There is a large high pressure system over the region that is causing a strong temperature inversion. This means the air aloft is warmer than the air at the surface so smoke and soot from factories and trucks gets trapped over the city. A blob of warm smoke from a factory smoke stack will begin to rise because it is …