News tagged with oxygen isotope ratio
Oxygen isotopes improve weather predictability in Niger
For the African nation of Niger, the effect of seasonal atmospheric variability on the weather is poorly understood. Because most residents rely on local agriculture, improving the predictability of seasonal weather and precipitation ...
Space & Earth / Earth Sciences
May 17, 2012 |
not rated yet |
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Atmospheric carbon dioxide buildup unlikely to spark abrupt climate change
There have been instances in Earth history when average temperatures have changed rapidly, as much as 10 degrees Celsius (18 degrees Fahrenheit) over a few decades, and some have speculated the same could happen again as ...
Space & Earth / Earth Sciences
Jun 20, 2011 |
3.8 / 5 (13) |
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Computer model documents the history of the West Antarctic ice sheet
(PhysOrg.com) -- One major threat of planetary warming is the melting of the great polar ice sheets, and the resulting rise in global sea level. Particularly worrisome to researchers is the fragility of the ...
Space & Earth / Earth Sciences
Aug 28, 2009 |
3.4 / 5 (10) |
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Search results for oxygen isotope ratio
New technique suggests Medieval Warm Period made it to Antarctica
Scientists have developed a new method of reconstructing past climates that uses the water locked inside crystals in seabed sediment to shed light on the history of the Antarctic.
Space & Earth / Earth Sciences
May 01, 2012 |
4.4 / 5 (7) |
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Glass sponge as a living climate archive
(PhysOrg.com) -- Climate scientists have discovered a new archive of historical sea temperatures. With the help of the skeleton of a sponge that belongs to the Monorhaphis chuni species and that lived in the ...
Space & Earth / Earth Sciences
Apr 05, 2012 |
4.8 / 5 (4) |
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Carbon dioxide caused global warming at Ice Age's end, pioneering simulation shows
(PhysOrg.com) -- Climate science has an equivalent to the "what came first—the chicken or the egg?" question: What came first, greenhouse gases or global warming? A multi-institutional team led by researchers ...
Space & Earth / Earth Sciences
Apr 05, 2012 |
4.6 / 5 (10) |
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Fertilizer use responsible for increase in nitrous oxide in atmosphere
University of California, Berkeley, chemists have found a smoking gun proving that increased fertilizer use over the past 50 years is responsible for a dramatic rise in atmospheric nitrous oxide, which is a major greenhouse ...
Space & Earth / Earth Sciences
Apr 02, 2012 |
4.1 / 5 (9) |
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Scientists use rare mineral to correlate past climate events in Europe, Antarctica
The first day of spring brought record high temperatures across the northern part of the United States, while much of the Southwest was digging out from a record-breaking spring snowstorm. The weather, it seems, has gone ...
Space & Earth / Earth Sciences
Mar 21, 2012 |
4.5 / 5 (4) |
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Study of isotopes shows recycling of Earth’s crust began 3 billion years ago
(PhysOrg.com) -- New research by a team of British Earth scientists shows that while the Earth’s crust was made up of new material for much of its early life, it later began to recycle material three ...
Space & Earth / Earth Sciences
Mar 16, 2012 |
4.8 / 5 (5) |
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Evolving planets get a bumpy ride
The formation of planets occurs under constant bombardment from particles ranging from a few nanometres to tens of kilometres in size, according to recent analyses of asteroid samples by scientists at Okayama ...
Space & Earth / Space Exploration
Mar 06, 2012 |
5 / 5 (1) |
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How heavy and light isotopes separate in magma
In the crash-car derby between heavy and light isotopes vying for the coolest spots as magma turns to solid rock, weightier isotopes have an edge, research led by Case Western Reserve University shows.
Feb 24, 2012 |
3.3 / 5 (3) |
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Evidence of past Southern hemisphere rainfall cycles related to Antarctic temperatures
Geoscientists at the University of Massachusetts Amherst and the University of Minnesota this week published the first evidence that warm-cold climate oscillations well known in the Northern Hemisphere over ...
Space & Earth / Earth Sciences
Jan 17, 2012 |
5 / 5 (3) |
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Quasicrystal is extraterrestrial in origin
A rare and exotic mineral, so unusual that it was thought impossible to exist, came to Earth on a meteorite, according to an international team of researchers led by Princeton University scientists. The discovery ...
Space & Earth / Space Exploration
Jan 13, 2012 |
4.6 / 5 (37) |
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List of search results for oxygen isotope ratio
