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Posted Sun Oct 10 2010: from National Science Foundation via ScienceDaily:
Too Much of a Good Thing: Human Activities Overload Ecosystems With Nitrogen
Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is an element that is essential to life, it is an environmental scourge at high levels. According to the study, excess nitrogen that is contributed by human activities pollutes fresh waters and coastal zones, and may contribute to climate change... Nitrogen oxide is a greenhouse gas that has 300 times (per molecule) the warming potential of carbon dioxide. In addition, nitrogen oxide destroys stratospheric ozone, which protects the earth from harmful ultraviolet (UV-B) radiation.
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'Doc Jim says:
It is the dawning of the Age of Nitrogen.

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