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Latest Holocene Stories

4957d03182a86a6cab264ac2166958591
2010-09-24 08:34:38

A team from the National Museum of Natural Sciences (CSIC) has analyzed the impact of climate change on spotted hyena survival in Europe over 10,000 years ago. These changes played an important role, but the scientists say studies are still needed to look at the influence of human expansion and changes in herbivorous fauna on the definitive extinction of this species across the continent. "Climate change in the past was not directly responsible for the extinction of the spotted hyena in...

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2010-07-09 07:30:00

North Pacific circulation radically changed by past post-glacial warming Toward the end of the last ice age, a major reorganization took place in the current system of the North Pacific with far-reaching implications for climate, according to a new study published in the July 9, 2010, issue of Science by an international team of scientists from Japan, Hawaii, and Belgium. Earth's climate is regulated largely by the world ocean's density-driven circulation, which brings warm surface water to...

2010-07-01 16:33:15

Even before the dawn of agriculture, people may have caused the planet to warm up, a new study suggests. Mammoths used to roam modern-day Russia and North America, but are now extinct"”and there's evidence that around 15,000 years ago, early hunters had a hand in wiping them out. A new study, accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union (AGU), argues that this die-off had the side effect of heating up the planet. "A lot of people...

2010-06-11 13:41:40

Research at the School of Geographical Sciences, Southwest University (SWU) in Chongqing, China-Research, has demonstrated that the record of the Asian Summer Monsoon (ASM) covers the last deglaciation and the early Holocene (from 16.2 to 7.3 ka BP), with an average oxygen isotope resolution of 9 years (issue 53, May 2010 of SCIENCE CHINA Earth Sciences). Understanding the factors responsible for past climatic changes is a key to understand future climate change. Such climatic changes include...

2010-06-09 21:36:18

Combination of hi-tech models and paleo-records may hold key to unlocking reason for Anastazi people's migration and other global events In the time before Columbus sailed the ocean blue, a cooler central Pacific Ocean has been connected with drought conditions in Europe and North America that may be responsible for famines and the disappearance of cliff dwelling people in the American West. A new study from the University of Miami (UM) has found a connection between La...

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2010-05-24 06:16:30

The extinction of mammoths and other megafauna that came after humans spread out across the New World may be one explanation of a sharp decline in global temperatures more than 12,750 years ago, researchers reported on Sunday. Roughly a hundred species of grass-eating giants that once flourished on the North American landscape released massive quantities of methane during their lifetime. As a heat-trapping greenhouse gas, methane is 30 times more potent than carbon dioxide. It may not have...

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2010-04-14 13:13:04

In just two centuries, humans have wrought such vast and unprecedented changes to our world that we actually might be ushering in a new geological time period that could alter the planet for millions of years, according to a group of prominent scientists that includes a Nobel Laureate. They say the dawning of this new epoch could lead to the sixth largest mass extinction in the Earth's history. Their commentary appears in ACS' bi-weekly journal Environmental Science & Technology. Jan...

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2010-03-27 11:21:23

Researchers show how world has changed Geologists from the University of Leicester are among four scientists- including a Nobel prize-winner "“ who suggest that the Earth has entered a new age of geological time. The Age of Aquarius? Not quite - It's the Anthropocene Epoch, say the scientists writing in the journal Environmental Science & Technology. (web issue March 29; print issue April 1) And they add that the dawning of this new epoch may include the sixth largest mass...

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2010-03-11 08:47:15

Archaeologists study the challenges faced by ancients in a warming world Since 2004, University at Buffalo anthropologist Ezra Zubrow has worked intensively with teams of scientists in the Arctic regions of St. James Bay, Quebec, northern Finland and Kamchatka to understand how humans living 4,000 to 6,000 years ago reacted to climate changes. "The circumpolar north is widely seen as an observatory for changing relations between human societies and their environment," Zubrow explains, "and...

039d5faa0df766b8e35c1e6deb753069
2010-03-02 11:21:55

Researchers evaluate climate fluctuations from 115,000 years ago At the end of the last interglacial epoch, around 115,000 years ago, there were significant climate fluctuations. In Central and Eastern Europe, the slow transition from the Eemian Interglacial to the Weichselian Glacial was marked by a growing instability in vegetation trends with possibly at least two warming events. This is the finding of German and Russian climate researchers who have evaluated geochemical and pollen...


Word of the Day
caparison
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.
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