Since China's capital city Beijing issued its first ever air pollution red alert last week, sales of bottled Canadian fresh mountain air to Chinese customers have soared. Two entrepreneurs from Alberta have been selling Vitality Air for just over a year, but over the last two weeks their sales to China have increased dramatically, reports The People's Daily Online. The red alert over air pollution was issued by Beijing authorities on December 7, lasting three days, amid the second bout of bad air this month. During this time PM2.5 levels - tiny hazardous airborne particles - exceeded 900 micrograms per...