News tagged with nutrient cycling

Are all alien encounters bad?

The pages of ecological history are filled with woeful tales of destruction from non-native species -- organisms that originated elsewhere.

dateAug 30, 2011 in Ecology
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Life Underground Critical to Earth's Ecosystems

(PhysOrg.com) -- "I wonder if I shall fall right through the Earth!" mused Alice-in-Wonderland as she tumbled down the rabbit-hole." How funny it'll seem to come out among people that walk with their heads downwards! The ...

dateJul 29, 2009 in Environment
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Earth's life support systems discussed

In the search for life on Mars or any planet, there is much more than the presence of carbon and oxygen to consider. Using Earth's biogeochemical cycles as a reference point, elements like nitrogen, iron and sulfur are just ...

dateFeb 02, 2011 in Earth Sciences
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