Geochemist Gabriel Filippelli in an Indianapolis garden. Filippelli's research shows that many urban gardens may have soil contaminated with lead Courtesy of Gabriel Filippelli hide caption

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Chef Jacob Kenedy created the recipes for the book — and says he struggled with some of them, like the dischi volanti.. Suzanne Mitchell hide caption

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An AquAdvantage salmon behind a non-transgenic Atlantic salmon sibling of the same age. Courtesy of AquaBounty Technologies hide caption

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A television advertisement from the Corn Refiners Association. The Corn Refiners Association hide caption

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