Air Pollution Linked to Unhappiness in Study of 144 Chinese Cities - A new MIT study of 210 million social media posts suggests the costs of air pollution goes beyond the lungs: High levels of air pollution take a toll on mood, too.

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Air Pollution Linked to Unhappiness in Study of 144 Chinese Cities - A new MIT study of 210 million social media posts suggests the costs of air pollution goes beyond the lungs: High levels of air pollution take a toll on mood, too.