29 octubre 2014
To understand the extent to which human activities are polluting Earth’s atmosphere and oceans, it’s important to distinguish human-made pollutants from compounds that occur naturally. A new study finds that deposition of ammonium, a source of nitrogen pollution, over the open ocean comes mostly from natural marine sources, and not from human activity.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OdkpJFubs4c/141029145642.htm
