News tagged with nitrogen cycle

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Deep-Sea Microbes May Answer Long-Standing Question About Earth's Nitrogen Cycle

Deep-Sea Microbes May Answer Long-Standing Question About Earth's Nitrogen Cycle

Space & Earth / Earth Sciences

created Oct 15, 2009 | popularity 4.6 / 5 (9) | comments 1

(PhysOrg.com) -- Scientists have identified an unexpected metabolic ability in a symbiotic community of deep-sea microorganisms. It may help solve a lingering mystery about the world's nitrogen cycle.


Key new ingredient in climate model refines global predictions

Space & Earth / Earth Sciences

created Oct 09, 2009 | popularity 3.6 / 5 (23) | comments 28

For the first time, climate scientists from across the country have successfully incorporated the nitrogen cycle into global simulations for climate change, questioning previous assumptions regarding carbon feedback and potentially ...


Lake Research That Isn't All Wet

Lake Research That Isn't All Wet

Space & Earth / Environment

created Oct 02, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- The federal government may not have been able to save California from massive budget cuts, but at least a stimulus research grant will help scientists understand the biology of western lakes.


Planet's nitrogen cycle overturned by 'tiny ammonia eater of the seas'

Biology / Cell & Microbiology

created Sep 30, 2009 | popularity 5 / 5 (12) | comments 0

(PhysOrg.com) -- It's not every day you find clues to the planet's inner workings in aquarium scum. But that's what happened a few years ago when University of Washington researchers cultured a tiny organism from the bottom ...


Denitrification, its importance once diluted, may be back on top, Princeton-led team says

Denitrification, its importance once diluted, may be back on top, study says

Space & Earth / Environment

created Sep 02, 2009 | popularity 4 / 5 (2) | comments 0

After more than a decade of inquiry, a Princeton-led team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.


Earth's biogeochemical cycles, once in concert, falling out of sync

Earth's biogeochemical cycles, once in concert, falling out of sync

Space & Earth / Environment

created Aug 04, 2009 | popularity 4 / 5 (7) | comments 3

(PhysOrg.com) -- What do the Gulf of Mexico's "dead zone," global climate change, and acid rain have in common? They're all a result of human impacts to Earth's biology, chemistry and geology, and the natural ...


New proxy reveals how humans have disrupted the nitrogen cycle

New proxy reveals how humans have disrupted the nitrogen cycle

Space & Earth / Environment

created Jun 04, 2009 | popularity 2.6 / 5 (7) | comments 0

More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the atmosphere, soil ...


Billions of years ago, microbes were key in developing modern nitrogen cycle

Biology /

created Feb 19, 2009 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- As the world marks the 200th anniversary of Charles Darwin's birth, there is much focus on evolution in animals and plants. But new research shows that for the countless billions of tiniest creatures - microbes ...


Fertilizers -- a growing threat to sea life

Space & Earth / Environment

created Oct 21, 2008 | popularity 4 / 5 (7) | comments 0

A rise in carbon emissions is not the only threat to the planet. Changes to the nitrogen cycle, caused in large part by the widespread use of fertilizers, are also damaging both water quality and aquatic life. These concerns ...