> I'm sure that there will soon be a minimum price for fresh air in smog-choked cities like Beijing. http://www.cnn.com/2015/12/15/asia/china-canadian-company-

> I'm sure that there will soon be a minimum price for fresh air in smog-choked cities like Beijing. http://www.cnn.com/2015/12/15/asia/china-canadian-company-selling-clean-air/ http://www.cnn.com/2015/12/15/asia/china-canadian-company-se...