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Human impact felt on Black Sea long before industrial era
Date:9/4/2012

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The ability to define baselines and separate natural variability from human-induced changes is essential for understanding biogeochemical cycles and managing marine ecosystems, which ultimately depends on the detection and attribution of long term environmental trends, the authors write. "Our ancestors changed that baseline a long time ago in the Black Sea" says Giosan. "And they probably fertilized other coastal seas with nutrients inadvertently stripped from soils much earlier than we think."

Meanwhile, the Danube delta remains an extraordinarily lush, vibrant habitat, home to hundreds of species of birds and fish. "This is a unique piece of land the Danube delta blessed, productive, and important for countless forms of life," adds Giosan. "What is amazing to me is that we owe much of this biodiversity to our own history of changing Nature."


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