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Nitrogen from humans pollutes remote lakes for more than a century

The effects on remote forests, lands and lakes are largely unknown, Schindler said. An increasing body of evidence, however, shows that the biological composition of microscopic communities in Arctic lakes changed with the arrival of human-derived nitrogen. This global nitrogen pollution may interact with climate change to produce a “double whammy” that could alter remote lakes in ways not seen in the past 10,000 years, Schindler saidThe authors conclude that climate, natural sources of nitrogen, and normal chemical processes on land and in water cannot account for the chemical signals they observe.

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Nitrogen from humans pollutes remote lakes for more than a century