News tagged with carbon cycle
Study ups plant CO2 intake estimates
Plants may be able to limit the impact of our CO2 emissions even more than we previously thought, an innovative new experiment suggests.
May 21, 2012 |
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New study provides baseline measurements of carbon in Arctic Ocean
Scientists from the Woods Hole Oceanographic Institution (WHOI) have conducted a new study to measure levels of carbon at various depths in the Arctic Ocean. The study, recently published in the journal Biogeosciences, provid ...
Space & Earth / Earth Sciences
May 21, 2012 |
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Diamonds show depth extent of Earth's carbon cycle
Scientists have speculated for some time that the Earth's carbon cycle extends deep into the planet's interior, but until now there has been no direct evidence. The mantle–Earth's thickest layer –is ...
Space & Earth / Earth Sciences
Sep 15, 2011 |
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Nasa's new carbon-counting instrument leaves the nest
(Phys.org) -- Its construction now complete, the science instrument that is the heart of NASA's Orbiting Carbon Observatory-2 (OCO-2) spacecraft - NASA's first mission dedicated to studying atmospheric carbon ...
Space & Earth / Earth Sciences
May 11, 2012 |
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Genome of marine organism reveals hidden secrets
An international team of researchers led by scientists at Scripps Institution of Oceanography at UC San Diego has deciphered the genome of a tropical marine organism known to produce substances potentially ...
May 09, 2011 |
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Identical virus, host populations can prevail for centuries
A Woods Hole Oceanographic Institution (WHOI) scientist, analyzing ancient plankton DNA signatures in sediments of the Black Sea, has found for the first time that the same genetic populations of a virus and its algal host ...
Jul 21, 2011 |
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First plants caused ice ages: research
New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. Led by the Universities of Exeter and Oxford, the study is published today (February 1, 2012) in Nature Geoscience.
Space & Earth / Earth Sciences
Feb 01, 2012 |
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Global glaciation snowballed into giant change in carbon cycle
For insight into what can happen when the Earth's carbon cycle is altered -- a cause and consequence of climate change -- scientists can look to an event that occurred some 720 million years ago.
Space & Earth / Earth Sciences
May 01, 2010 |
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Global warming: Our best guess is likely wrong
No one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study this week suggests scientists' best predictions about global warming might be incorrect.
Space & Earth / Earth Sciences
Jul 14, 2009 |
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Breath of the Earth: Cycling carbon through terrestrial ecosystems
Two recent international studies are poised to change the way scientists view the crucial relationship between Earth's climate and the carbon cycle. These reports explore the global photosynthesis and respiration ...
Space & Earth / Earth Sciences
Jul 05, 2010 |
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Methane gas likely spewing into the oceans through vents in sea floor (w/ Video)
(PhysOrg.com) -- Scientists worry that rising global temperatures accompanied by melting permafrost in arctic regions will initiate the release of underground methane into the atmosphere. Once released, that ...
Space & Earth / Earth Sciences
Sep 02, 2009 |
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Restored wetlands rarely equal condition of original wetlands
Wetland restoration is a billion-dollar-a-year industry in the United States that aims to create ecosystems similar to those that disappeared over the past century. But a new analysis of restoration projects ...
Jan 24, 2012 |
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Living in the galactic danger zone
We know for certain that life exists in the Milky Way galaxy: that life is us. Scientists are continually looking to understand more about how life on our planet came to be and the conditions that must be ...
Sep 23, 2011 |
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Great balls of evolution: Microbiologists evolve microorganisms to cooperate in new way
University of Massachusetts Amherst microbiologists Derek Lovley, Zarath Summers and colleagues report in the Dec. 2 issue of Science that they have discovered a new cooperative behavior in anaerobic bacteria, known as int ...
Dec 02, 2010 |
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Team finds natural reasons behind nitrogen-rich forests
(PhysOrg.com) -- Many tropical forests are extremely rich in nitrogen even when there are no farms or industries nearby, says Montana State University researcher Jack Brookshire.
Space & Earth / Earth Sciences
Jan 16, 2012 |
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Carbon cycle
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
The carbon cycle is usually thought of as four major reservoirs of carbon interconnected by pathways of exchange. These reservoirs are:
The annual movements of carbon, the carbon exchanges between reservoirs, occur because of various chemical, physical, geological, and biological processes. The ocean contains the largest active pool of carbon near the surface of the Earth, but the deep ocean part of this pool does not rapidly exchange with the atmosphere.
The global carbon budget is the balance of the exchanges (incomes and losses) of carbon between the carbon reservoirs or between one specific loop (e.g., atmosphere ↔ biosphere) of the carbon cycle. An examination of the carbon budget of a pool or reservoir can provide information about whether the pool or reservoir is functioning as a source or sink for carbon dioxide.
For more information about Carbon cycle, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
