News tagged with sea sediments
Arctic ice at low point compared to recent geologic history
Less ice covers the Arctic today than at any time in recent geologic history. That's the conclusion of an international group of researchers, who have compiled the first comprehensive history of Arctic ice.
Space & Earth / Earth Sciences
Jun 02, 2010 |
3.6 / 5 (23) |
8
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Antarctic sea temperatures cooled in Holocene but now rising: study
(PhysOrg.com) -- A new study of an ocean sediment core taken from deep water off the coast of the western Antarctic Peninsula is beginning to fill in some of the gaps in our knowledge of climate variability ...
Space & Earth / Earth Sciences
Feb 10, 2011 |
4.2 / 5 (18) |
20
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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 |
4 / 5 (17) |
32
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Sea Level Is Rising Along U.S. Atlantic Coast, According to New Data Analysis
(PhysOrg.com) -- An international team of environmental scientists led by the University of Pennsylvania has shown that sea-level rise along the Atlantic Coast of the United States was 2 millimeters faster in the 20th century ...
Space & Earth / Earth Sciences
Dec 03, 2009 |
3.7 / 5 (13) |
0
Bering Sea was ice-free and full of life during last warm period, study finds
Deep sediment cores retrieved from the Bering Sea floor indicate that the region was ice-free all year and biological productivity was high during the last major warm period in Earth's climate history.
Space & Earth / Earth Sciences
Dec 13, 2010 |
4.6 / 5 (9) |
120
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Large CO2 release speeds up ice age melting
Radiocarbon dating is used to determine the age of everything from ancient artifacts to prehistoric corals on the ocean bottom.
Space & Earth / Earth Sciences
Aug 26, 2010 |
3.5 / 5 (11) |
2
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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 |
4.8 / 5 (8) |
9
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Pacific tsunami threat greater than expected
The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast.
Space & Earth / Earth Sciences
Jul 20, 2009 |
4.3 / 5 (8) |
0
Ecological impact on Canada's Arctic coastline linked to global climate change
Scientists from Queen's and Carleton universities head a national multidisciplinary research team that has uncovered startling new evidence of the destructive impact of global climate change on North America's ...
May 16, 2011 |
4.3 / 5 (7) |
16
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California's Ancient Kelp Forest
(PhysOrg.com) -- The kelp forests off southern California are considered to be some of the most diverse and productive ecosystems on the planet, yet a new study indicates that today's kelp beds are less extensive and lush ...
Nov 10, 2009 |
4.7 / 5 (6) |
0
Deep in sediments off Antarctica, Stanford scientists find insight into past -- and possible future -- climates
(PhysOrg.com) -- From the Antarctic Ocean, Earth scientist Rob Dunbar blogs about the challenges of drilling ancient deep-sea sediments -- and what he's found in them.
Space & Earth / Earth Sciences
Feb 18, 2010 |
4.3 / 5 (6) |
5
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Ocean Drilling Expedition off Antarctica May Predict Ice Sheet's Response to Warmer Global Temperatures
(PhysOrg.com) -- New results from a drilling expedition off Antarctica may help scientists learn more about a dramatic turn in climate 34 million years ago, when the planet cooled from a "greenhouse" to ...
Space & Earth / Earth Sciences
May 04, 2010 |
4.3 / 5 (6) |
0
Exploring hidden life’s abundance
(PhysOrg.com) -- Two miles below the surface of the Sargasso Sea lies a depression in the Earth’s crust filled with sediment and, scientists believe, teeming with life — exotic, microscopic, and very likely ...
Space & Earth / Earth Sciences
Feb 12, 2009 |
4.8 / 5 (5) |
0
Seafloor Fossils Provide Clues on Climate Change
Deep under the sea, a fossil the size of a sand grain is nestled among a billion of its closest dead relatives. Known as foraminifera, these complex little shells of calcium carbonate can tell you the sea ...
Space & Earth / Earth Sciences
Oct 22, 2009 |
4 / 5 (6) |
1
Arctic exploration finds large underwater mountain
(AP) -- Joint U.S.-Canada exploration of the Arctic sea floor discovered an unusual underwater mountain and evidence that could boost the two countries' claims that their boundaries extend farther north. For the past two ...
Space & Earth / Earth Sciences
Sep 10, 2009 |
3.8 / 5 (6) |
0
