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Why It’s So Hard to Tell If a Country Is Really Rid of Polio
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Why It’s So Hard to Tell If a Country Is Really Rid of Polio

Last week, the WHO confirmed that polio had sprung up in Nigeria and paralyzed two children—a setback in the decades-long fight to eradicate the disease. The country (and, by extension, Africa) was just a year away from being declared polio-free. Now the clock resets, and Africa’s next chance of being […]

Does Monsanto’s Roundup Herbicide Cause Cancer or Not? The Controversy, Explained
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Does Monsanto’s Roundup Herbicide Cause Cancer or Not? The Controversy, Explained

This week, the World Health Organization managed to inject even more confusion into an already confusing question: whether glyphosate, the common weed killer popularized as Roundup by Monsanto, causes cancer. Glyphosate poses no cancer risk, according to a report just out from a joint United Nations and WHO meeting on […]