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As we pause to reflect on this somber anniversary, Emily Brill over at ChinaFile poses a rather unusual question: "Beijing’s Air in 2013 or Ground Zero’s After 9/11: Which Was Worse?" Her findings may surprise you.
China Air Daily, a new site from Asia Society's China Green project, allows users to view daily photographs of the skies of China's major cities instead of having to plow through lists of statistical data.