Search Term: climate change

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Cave Dates and Climate Estimates May Be Off
December 19, 2009
...found that calcite deposition is a function of how the cave “breathes,” reported New Scientist.  This finding “pours doubt on ancient climate records derived from these structures.”     Climate...
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Ferocity of Geological Change Stuns Scientists
November 4, 2009
...ocean like the Red Sea.     The team was amazed by the rapid change.  “The ferocity of what we saw during this episode stunned everyone,” said a team member...
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Geology

Paper View:  A Geology Paradigm Suffers a Paradox
August 7, 2009
...Paleozoic climate change (Poulsen et al., 2007; Peyser and Poulsen, 2008), and is relevant to our current understanding of the climate-cryosphere system.” This can only imply one thing: jargon and...
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Solar System

Cassini Celebrates Season of Change
December 18, 2008
...BBC News quoted AGU scientists optimistic that cryovolcanos are common on Titan.  Two regions re-imaged over time show changes in brightness.  The Virtual and Infrared Mapping Spectrometer team figures that...
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Fossils

How Much Is Known About Climate History?
August 1, 2008
...result of an abrupt change in the Atlantic meridional overturning circulation, scientists emphasized the physical impossibility of this scenario.  Now some might be stunned by how quickly climate can change. ...
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Leaf Assumption Challenged: Affects Climate Modeling
July 29, 2008
...and has various ramifications.”     One key ramification relates to climate models.  Scientists have built models of past climate on the assumption that the oxygen ratios they measured in...
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Physics

Are Long-Term Climate Models Trustworthy?
February 5, 2008
...~100,000-year glacial cycles of the late Pleistocene?  How do the subtle changes in insolation relate to the massive changes in climate known as glacial cycles?  And what are proxy climate...
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Physics

Can Caves Record Climate History?
January 19, 2006
Many geologists and climatologists have assumed that cave formations, forming slowly over long ages, preserve a record of climate changes.  These assumptions have been challenged by University of Texas researchers...
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Dinosaurs

Cretaceous Temperature Estimates Point Out Flaws in Climate Models
December 15, 2004
...the Cretaceous climate predict polar temperatures that are too cold and Equator-to-pole temperature gradients that are too large?  The solution to the problem may lurk in the climate models themselves. ...
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North Pole Enjoyed Balmy Climate
September 8, 2004
In ages past, the North Pole region enjoyed a Mediterranean climate, according to Nature Science Update and the BBC News.  EurekAlert reminds us that ice cores demonstrate that Greenland, too,...
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Cell Biology

Botulinum Toxin Deactivated by One Slight Change
May 10, 2004
A researcher at Brookhaven National Laboratory mutated a botulinum enzyme by just one amino acid, and abolished its toxicity.  The mutation, a change from a glutamate to a glutamine at...
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Bible and Theology

How Climate Influenced the Dead Sea and History
May 3, 2004
...at Masada overlooking the lake. Later, Moslems and Crusaders left marks of their conquests in the region. Did the Dead Sea preserve a record of climactic changes that affected not...
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