“Each instrument represents a specific part of the Northern Hemisphere. The cello matches the temperature of the equatorial zone. The viola tracks the mid latitudes. The two violins separately follow temperatures in the high latitudes and in the arctic.” The pitch of each note is tuned to the average annual temperature in each region, so low notes represent cold years and high notes represent warm years.
Beijing has been swamped for days in a beige-gray miasma of smog, bringing coughs and rasping, hospitals crowded from respiratory ailments, a midday sky so dim that it could pass for evening, and head-shaking disgust from residents who had hoped the city was over the worst of its chronic pollution.