Quantcast

Latest Carbon cycle Stories

2010-04-27 18:52:47

New Haven, Conn. -- The physiology of microbes living underground could determine the amount of carbon dioxide emitted from soils on a warmer Earth, according to a study published online this week in Nature Geoscience. Researchers at UC Irvine, Colorado State University and the Yale School of Forestry & Environmental Studies have found that as global temperatures increase, microbes in soil become less efficient over time in converting carbon in soil into carbon dioxide, which is a key...

d73243f9654ef75c5b4f42463ec0e1b91
2010-04-26 08:10:10

Key players in carbon cycle multiply slowly when overheated In dark, rich soils on every continent, microbes dealing with the effects of climate change aren't accelerating global warming the way scientists had predicted, a study by researchers at the University of California at Irvine, Colorado State University and Yale University shows. Results of the study appear in a paper published on-line this week in the journal Nature Geoscience. The work was supported by the National Science...

d2ea77f744a3620d92b975176a6cf5631
2010-04-15 13:58:08

Carbon fixation by phytoplankton in the open ocean plays a key role in the global carbon cycle but is not fully understood. Until now researchers believed that cyanobacteria overwhelmingly accounted for phytoplankton's role in carbon fixation in the open ocean. But now scientists at the University of Warwick and the National Oceanography Centre in Southampton have opened 'the black box' of eukaryotic phytoplankton and discovered that they actually account for almost half the ocean's carbon...

f795f9e9d625d24a9bd8c0fe21de304a1
2010-03-25 08:31:14

Twenty years of field studies reveal that as the Earth has gotten warmer, plants and microbes in the soil have given off more carbon dioxide. So-called soil respiration has increased about one-tenth of 1 percent per year since 1989, according to an analysis of past studies in the March 24 issue of Nature. The scientists also calculated the total amount of carbon dioxide flowing from soils, which is about 10-15 percent higher than previous measurements. That number -- about 98 petagrams of...

82e78c54f30c8aa355f802a819ac7ed6
2010-03-04 16:45:10

BOSTON, Mass. -- Reduce. Reuse. Recycle. We hear this mantra time and again. When it comes to carbon"´the "Most Wanted" element in terms of climate change"´nature has got reuse and recycle covered. However, it's up to us to reduce. Scientists at Harvard Medical School are trying to meet this challenge by learning more about the carbon cycle, that is, the process by which carbon moves from the atmosphere into plants, oceans, soils, the earth's crust, and back into the atmosphere...

92c5c49410a72c664e4ed791f6f5dc641
2010-02-16 16:39:50

Two studies provide clearer picture of how carbon cycle was dramatically affected long ago Geoengineering -- deliberate manipulation of the Earth's climate to slow or reverse global warming -- has gained a foothold in the climate change discussion. But before effective action can be taken, the Earth's natural biogeochemical cycles must be better understood. Two Northwestern University studies, both published online recently by Nature Geoscience, contribute new -- and related -- clues as to...

a4eaeda0123dff7c4356d5f88b21fb851
2010-01-08 13:22:59

The impact on levels of carbon dioxide in the Earth's atmosphere by the decaying remains of a group of marine creatures that includes starfish and sea urchin has been significantly underestimated. "Climate models must take this carbon sink into account," says Mario Lebrato, lead author of the study. The work was done when he was at the National Oceanography Centre, Southampton (NOCS) and affiliated with the University of Southampton's School of Ocean and Earth Science (SOES); he is now at the...

c44188261e501825705b1dc1caf6838e1
2009-12-16 07:29:04

Researchers studying carbon dioxide, a leading greenhouse gas and a key driver of global climate change, now have a new tool at their disposal: daily global measurements of carbon dioxide in a key part of our atmosphere. The data are courtesy of the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft. Moustafa Chahine, the instrument's science team leader at NASA's Jet Propulsion Laboratory, Pasadena, Calif., unveiled the new product at a briefing on recent breakthroughs...

3fda90d4cefec2f59072a0936645a707
2009-11-03 09:18:21

Deep-sea ecosystems occupying 60% of the Earth's surface could be vulnerable to the effects of global warming warn scientists writing in the Proceedings of the National Academy of Sciences. "Global-scale models are now estimating that climate change will affect the supply of organic matter from surface waters upon which most deep-sea ecosystems depend," says co-author Dr Henry Ruhl of the National Oceanography Centre, Southampton. Most scientists believe that the burning of fossil fuels (gas,...

179487b9175ed4b2d5daf24f75ed43d01
2009-10-15 07:38:56

New study shows that Arctic has potential to alter Earth's climate In a new study in the journal Ecological Monographs, ecologists estimate that Arctic lands and oceans are responsible for up to 25 percent of the global net sink of atmospheric carbon dioxide. Under current predictions of global warming, this Arctic sink could be diminished or reversed, potentially accelerating predicted rates of climate change. In their review paper, David McGuire of the U.S. Geological Survey and the...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
Related