Describing the heavens above the city of Taiyuan, provincial capital of Shanxi, as blue used to be an oxymoron. Local residents now say that sapphire skies are nothing new. What happened?Once the...
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Describing the heavens above the city of Taiyuan, provincial capital of Shanxi, as blue used to be an oxymoron. Local residents now say that sapphire skies are nothing new. What happened?Once the...