Air purifier sales boom amid China’s pollution
If you currently live in China, and especially in one of its larger cities like Beijing or Shanghai, you are surely well-acquainted with the recent wave of pollution that eerily envelopes the tallest of buildings, often making it difficult to see even a kilometer in the distance. Although I can remember looking out over the Bund from atop the Oriental Pearl Tower in 2007 and seeing the city slowly disappear in front of me, the recent photos coming out of...