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Pribnow  ·  3701 days ago  ·  link  ·    ·  parent  ·  post: Chinese Scientist Likens Beijing's Smog Problem To Nuclear Winter

This is especially bad for greenhouse farming, the particles end up coating the glass and cutting the amount of light that gets through by about 50%.

http://www.scmp.com/news/china/article/1434700/china-smog-threatens-agriculture-nuclear-fallout-conditions-warn