News tagged with sediment core
Study finds rising levels of dioxins from common soap ingredient in Mississippi River
Specific dioxins derived from the antibacterial agent triclosan, used in many hand soaps, deodorants, dishwashing liquids and other consumer products, account for an increasing proportion of total dioxins ...
May 18, 2010 |
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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) |
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Scientists probe Earth's core
We know more about distant galaxies than we do about the interior of our own planet. However, by observing distant earthquakes, researchers at the University of Calgary have revealed new clues about the top ...
Space & Earth / Earth Sciences
Apr 28, 2010 |
4.4 / 5 (20) |
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Geologist discovers pattern in Earth's long-term climate record
In an analysis of the past 1.2 million years, UC Santa Barbara geologist Lorraine Lisiecki discovered a pattern that connects the regular changes of the Earth's orbital cycle to changes in the Earth's climate. ...
Space & Earth / Earth Sciences
Apr 06, 2010 |
4.6 / 5 (30) |
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Marine Scientist Finds 'Little Ice Age' Had Dramatic Effect on Gulf
(PhysOrg.com) -- More than 350 years ago, the temperatures in northern Europe dropped dramatically in an event known as the “Little Ice Age.” Now - deep below the waters of the Gulf of Mexico and buried in ...
Space & Earth / Earth Sciences
Feb 22, 2010 |
4.7 / 5 (23) |
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Global warming likely to be amplified by slow changes to Earth systems
Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...
Space & Earth / Earth Sciences
Dec 20, 2009 |
2.8 / 5 (49) |
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From greenhouse to icehouse -- reconstructing the environment of the Voring Plateau
The analysis of microfossils found in ocean sediment cores is illuminating the environmental conditions that prevailed at high latitudes during a critical period of Earth history.
Space & Earth / Earth Sciences
Dec 15, 2009 |
4.3 / 5 (9) |
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A novel, 10,000-year study of strata compaction and sea-level rise on English coast
Environmental scientists at the University of Pennsylvania and Durham University have employed a novel combination of geological and model reconstructions of wetland environments during a 10,000-year period ...
Space & Earth / Earth Sciences
Dec 10, 2009 |
4.5 / 5 (2) |
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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) |
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Strong regional climatic fluctuations in the tropics
Climatic fluctuations close to the equator show a different pattern to climate change in the Arctic and Antarctic. In the tropics distinct 11500 year fluctuations between wet and dry periods can be clearly identified which ...
Space & Earth / Earth Sciences
Dec 02, 2009 |
4.7 / 5 (3) |
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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) |
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Past climate of the northern Antarctic Peninsular informs global warming debate
The seriousness of current global warming is underlined by a reconstruction of climate at Maxwell Bay in the South Shetland Islands of the Antarctic Peninsula over approximately the last 14,000 years, which ...
Space & Earth / Earth Sciences
Nov 06, 2009 |
2.8 / 5 (9) |
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Arctic lake sediments show warming, unique ecological changes in recent decades
An analysis of sediment cores indicates that biological and chemical changes occurring at a remote Arctic lake are unprecedented over the past 200,000 years and likely are the result of human-caused climate ...
Space & Earth / Earth Sciences
Oct 19, 2009 |
4 / 5 (9) |
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New temperature reconstruction from Indo-Pacific warm pool
A new 2,000-year-long reconstruction of sea surface temperatures (SST) from the Indo-Pacific warm pool (IPWP) suggests that temperatures in the region may have been as warm during the Medieval Warm Period ...
Space & Earth / Earth Sciences
Aug 27, 2009 |
3.8 / 5 (5) |
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Professor hatches century-old eggs to study evolution
(PhysOrg.com) -- Suspending a life in time is a theme that normally finds itself in the pages of science fiction, but now such ideas have become a reality in the annals of science.
Jul 17, 2009 |
4.4 / 5 (14) |
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