News tagged with carbon isotopes
Dog skull dates back 33,000 years
If you think a Chihuahua doesn't have much in common with a Rottweiler, you might be on to something.
Other Sciences / Archaeology & Fossils
Jan 23, 2012 |
4.7 / 5 (15) |
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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 |
4.8 / 5 (6) |
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Industrialization weakens important carbon sink
Australian scientists have reconstructed the past six thousand years in estuary sedimentation records to look for changes in plant and algae abundance. Their findings, published in Global Change Biology, show a ...
Nov 29, 2011 |
5 / 5 (1) |
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New technologies challenge old ideas about early hominid diets
New assessments by researchers using the latest high-tech tools to study the diets of early hominids are challenging long-held assumptions about what our ancestors ate, says a study by the University of Colorado ...
Other Sciences / Archaeology & Fossils
Oct 13, 2011 |
5 / 5 (3) |
3
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Global warming: New study challenges carbon benchmark
The ability of forests, plants and soil to suck carbon dioxide (CO2) from the air has been under-estimated, according to a study on Wednesday that challenges a benchmark for calculating the greenhouse-gas ...
Space & Earth / Earth Sciences
Sep 28, 2011 |
4.4 / 5 (12) |
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Cell dysfunction linked to obesity and metabolic disorders
By measuring the radioactive isotope carbon-14, scientists at Karolinska Institutet have revealed an association between lipid cell dysfunction and diseases such as obesity, diabetes and blood lipid disorders. The study, ...
Sep 26, 2011 |
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Paleoecologists suggest mass extinction due to huge methane release
(PhysOrg.com) -- Micha Ruhl and colleagues from the University of Copenhagen's Nordic Center for Earth Evolution have published a paper in Science where they contend that the mass extinction that occurred at the ...
Space & Earth / Earth Sciences
Jul 22, 2011 |
4.4 / 5 (21) |
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Discovering lost salmon at sea
Where Atlantic salmon feed in the ocean has been a long-standing mystery, but new research led by the University of Southampton shows that marine location can be recovered from the chemistry of fish scales. ...
Jun 23, 2011 |
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Physicists explain the long, useful lifetime of carbon-14
The long, slow decay of carbon-14 allows archaeologists to accurately date the relics of history back to 60,000 years.
May 26, 2011 |
4.8 / 5 (14) |
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Neanderthals died out earlier than originally believed
(PhysOrg.com) -- According to a newly released report in The Proceedings of the National Academy of Sciences, a newly refined method of radiocarbon dating has found that Neanderthals died off much earlier than o ...
Other Sciences / Archaeology & Fossils
May 10, 2011 |
4.5 / 5 (14) |
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Team studies Earth's recovery from prehistoric global warming
(PhysOrg.com) -- The Earth may be able to recover from rising carbon dioxide emissions faster than previously thought, according to evidence from a prehistoric event analyzed by a Purdue University-led team.
Space & Earth / Earth Sciences
Apr 21, 2011 |
4.7 / 5 (6) |
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New study illustrates shifting biomes in Alaska
A new study released today in the EarlyView of Ecology Letters addresses forest productivity trends in Alaska, highlighting a shift in biomes caused by a warming climate. The findings, conducted by scientists at the Woods ...
Feb 21, 2011 |
3 / 5 (2) |
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Paper archives reveal pollution's history
A new source of climate records is as close as the nearest university library: Back issues of magazines reveal the rise in atmospheric CO2 from burning fossil fuels.
Space & Earth / Earth Sciences
Feb 08, 2011 |
2.3 / 5 (3) |
2
Building cement 'prison' for old radioactive waste
The Cold War ended long ago, but its radioactive legacy still lingers in the water and soil of the western United States. Between 1950 and 1990, nuclear weapons materials production and processing at several ...
Jan 11, 2011 |
4.3 / 5 (3) |
2
Fossil record receives new timeline
Beginning around 542 million years ago, a profusion of animals with shells and skeletons began to appear in the fossil record. So many life forms appeared during this time that it is often referred to as the ...
Space & Earth / Earth Sciences
Nov 10, 2010 |
4.3 / 5 (9) |
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