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Study: Rising Carbon Dioxide Levels Threaten Human Nutrition

Climate change is threatening human nutrition, according to experts, who say rising levels of carbon dioxide in the atmosphere are robbing the global population of vital plant nutrients. That conclusion follows the release of the 2014 National Climate Assessment, which predicts that extreme weather will disrupt agricultural production, and have negative consequences for food security, both in the U.S. and globally. The study says the damage will come not only through changes in crop yields,...

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