Bird feathers show pollution rise over 120 years: study

Agence France-Presse: Feathers collected from rare Pacific seabirds over the past 120 years have shown an increase in a type of toxic mercury that likely comes from human pollution, US researchers said on Monday. Scientists at Harvard University took samples from feathers belonging to the endangered black-footed albatross from two US museum collections, said the study in the Proceedings of the National Academy of Sciences. The feathers, which dated from 1880 to 2002, showed "increasing levels of methylmercury that......

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