News tagged with sedimentation

Toxic spill from zinc mine in Peru

(AP)—Peruvian authorities say wastewater laced with heavy metals from a major zinc mine has spilled into a tributary of the Amazon, contaminating at least six miles of the waterway.

dateSep 03, 2012 in Environment
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How methane becomes fish food

Methane is an organic carbon compound containing the fundamental building block of nearly all living material: carbon. It provides an important source of energy and nutrients for bacteria. Methane is produced in oxygen-free ...

dateAug 27, 2012 in Earth Sciences
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How much nitrogen is fixed in the ocean?

In order to predict how the Earth's climate develops scientists have to know which gases and trace elements are naturally bound and released by the ocean and in which quantities. For nitrogen, an essential element for the ...

dateAug 10, 2012 in Environment
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