News tagged with sediment core
Tracking nutrient pollutant in Chesapeake
Too much of a good thing can kill you, the saying goes.
May 10, 2012 |
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Scientists core into California's Clear Lake to explore past climate change
(Phys.org) -- University of California, Berkeley, scientists are drilling into ancient sediments at the bottom of Northern California's Clear Lake for clues that could help them better predict how today's ...
Space & Earth / Earth Sciences
May 03, 2012 |
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Environmental index could save rural communities
A new approach to environmental monitoring could avert ruin for some of the world's poorest communities.
Apr 23, 2012 |
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Warning signs from ancient Greek tsunami
In the winter of 479 B.C., a tsunami was the savior of Potidaea, drowning hundreds of Persian invaders as they lay siege to the ancient Greek village. New geological evidence suggests that the region may still ...
Space & Earth / Earth Sciences
Apr 19, 2012 |
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Mud manifests history of clear water in murky Minnesota duck depot Lake Christina
During peak migration days in the early 1900s, tens of thousands of canvasback ducks could be seen floating and diving on Minnesota's Lake Christina. Since midcentury, changes to the lake have diminished this grand, iconic ...
Mar 27, 2012 |
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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 |
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Ancient deep sea rivers of sand and mud tell climate story
Planet Earth is now due for another ice age when glaciers will form and sea levels drop up to 120m. But don't get your woollies out just yet. "Any moment now" in geological speak means give or take a few hundreds of years ...
Space & Earth / Earth Sciences
Feb 29, 2012 |
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New study may answer questions about enigmatic Little Ice Age
A new University of Colorado Boulder-led study appears to answer contentious questions about the onset and cause of Earth's Little Ice Age, a period of cooling temperatures that began after the Middle Ages ...
Space & Earth / Earth Sciences
Jan 30, 2012 |
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Scientists look to microbes to unlock Earth's deep secrets
(PhysOrg.com) -- Of all the habitable parts of our planet, one ecosystem still remains largely unexplored and unknown to science: the igneous ocean crust.
Space & Earth / Earth Sciences
Jan 10, 2012 |
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2012: Magnetic pole reversal happens all the (geologic) time
Scientists understand that Earth's magnetic field has flipped its polarity many times over the millennia. In other words, if you were alive about 800,000 years ago, and facing what we call north with a magnetic ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Rising CO2 levels at end of Ice Age not tied to Pacific Ocean
At the end of the last Ice Age, atmospheric carbon dioxide levels rose rapidly as the planet warmed; scientists have long hypothesized that the source was CO2 released from the deep ocean.
Space & Earth / Earth Sciences
Oct 03, 2011 |
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Scientists study earthquake triggers in Pacific ocean
(PhysOrg.com) -- New samples of rock and sediment from the depths of the eastern Pacific Ocean may help explain the cause of large, destructive earthquakes similar to the Tohoku Earthquake that struck Japan ...
Space & Earth / Earth Sciences
Jun 29, 2011 |
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Salt marsh sediments help gauge climate-change-induced sea level rise
A newly constructed, 2,000-year history of sea level elevations will help scientists refine the models used to predict climate-change-induced sea level rise, according to an international team of climate researchers. The ...
Space & Earth / Earth Sciences
Jun 20, 2011 |
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Fastest sea-level rise in two millennia linked to increasing temperatures
(PhysOrg.com) -- An international research team including University of Pennsylvania scientists has shown that the rate of sea-level rise along the U.S. Atlantic coast is greater now than at any time in the ...
Space & Earth / Earth Sciences
Jun 20, 2011 |
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Rapid changes in Greenland climate last 5,000 years, study finds
(PhysOrg.com) -- Abrupt average temperature changes of as much as 4 or 5 degrees Celsius over a few decades may have profoundly affected human civilization for cultures that occupied western Greenland over ...
Space & Earth / Earth Sciences
Jun 01, 2011 |
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