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Latest Nature Geoscience Stories

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2010-02-22 15:45:00

A 2009 claim that sea levels would rise up to 32 inches by the end of the century, is being retracted, as the original report's author says the real estimate is still not known. Scientists have discovered mistakes that undermine the projected sea level increase that would be affected by global warming. The study, published in the journal Nature Geoscience, confirmed the conclusions of a 2007 report from the Intergovernmental Panel on Climate Change. The 2009 study collected data from the...

1d35def91cc60f410f77f6752f650f1a1
2010-02-11 11:20:00

A study by University of Michigan researchers offers new insight into what happens to mercury deposited onto Arctic snow from the atmosphere. The work also provides a new approach to tracking mercury's movement through Arctic ecosystems. Mercury is a naturally occurring element, but some 2000 tons of it enter the global environment each year from human-generated sources such as coal-burning power plants, incinerators and chlorine-producing plants. "When released into the atmosphere in its...

2010-01-22 12:40:37

Researchers have discovered that some of the most fundamental assumptions about how water moves through soil in a seasonally dry climate such as the Pacific Northwest are incorrect "“ and that a century of research based on those assumptions will have to be reconsidered. A new study by scientists from Oregon State University and the Environmental Protection Agency showed "“ much to the surprise of the researchers "“ that soil clings tenaciously to the first precipitation...

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2010-01-18 07:40:00

Indonesia may be looking at a catastrophe as a huge tsunami-generating earthquake is possibly expected to hit the city of Padang and the island of Sumatra. A warning was issued by a scientist who miraculously predicted the quake that hit Sumatra in 2005. The warning was issued in a letter to the journal Nature Geoscience. The peril comes from a relentless buildup of pressure over the last two centuries on a section of the Sunda Trench, one of the world's most notorious earthquake zones, which...

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2010-01-17 13:35:00

The combination of low concentrations of oxygen and nutrients in the lower layers of the beaches of Alaska's Prince William Sound is slowing the aerobic biodegradation of oil remaining from the 1989 Exxon Valdez spill, according to researchers at Temple University. Considered one of the worst environmental disasters in history, the Exxon Valdez spilled more than 11 million gallons of crude oil into Alaska's Prince William Sound, contaminating some 1,300 miles of shoreline, killing thousands...

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2010-01-11 14:35:00

Blobs of warm ice that periodically rise to the surface and churn the icy crust on Saturn's moon Enceladus explain the quirky heat behavior and intriguing surface of the moon's south polar region, according to a new paper using data from NASA's Cassini spacecraft. "Cassini appears to have caught Enceladus in the middle of a burp," said Francis Nimmo, a planetary scientist at the University of California Santa Cruz and a co-author of the new paper in Nature Geoscience. "These tumultuous...

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2010-01-11 07:40:00

In a vivid example of how a small geographic feature can have far-reaching impacts on climate, new research shows that water levels in the Bering Strait helped drive global climate patterns during ice age episodes dating back more than 100,000 years. The international study, led by scientists at the National Center for Atmospheric Research (NCAR), found that the repeated opening and closing of the narrow strait due to fluctuating sea levels affected currents that transported heat and salinity...

0cc92237dd18bf5fe2db40cd54c332121
2009-12-22 10:54:03

There is little doubt among scientists now that human carbon dioxide emissions are warming the planet. Another problem of rising atmospheric carbon dioxide (CO2) is that CO2 is being absorbed by the oceans, which increases seawater acidity (lowers the seawater pH). This process, termed 'ocean acidification', has received growing scientific and public interest because it threatens certain groups of marine organisms, including corals. Only recently have researchers realized that man-made carbon...

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2009-12-20 13:45:00

The kinds of increases in atmospheric carbon dioxide taking place today could have a significantly larger effect on global temperatures than previously thought, according to a new study led by Yale University geologists. Their findings appear December 20 in the advanced online edition of Nature Geoscience. The team demonstrated that only a relatively small rise in atmospheric carbon dioxide (CO2) was associated with a period of substantial warming in the mid- and early-Pliocene era, between...

2009-12-15 22:21:15

A new study of Pacific Ocean sediments off the coast of Chile has found that  offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 years ago. The findings are intriguing as scientists are exploring whether climate change may be contributing to outbreaks of hypoxia "“ or extremely low oxygen levels "“ along the near-shore regions of South America and the Pacific Northwest of the...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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