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UCSD scientists establish connection between life today and ancient changes in ocean chemistry
11-06-2006 · EurekAlert!Researchers in computational biology and marine science have combined their diverse expertise and found that trace-metal usage by present-day organisms probably derives from major changes in ocean chemistry occurring over geological time scales.
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Keywords: ucsd, scientists, establish, connection, life, today, ancient, changes, ocean, chemistry, scientist, change
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- West African Ocean sediment core links monsoons to global climate evolution
05-31-2007 · EurekAlert!
Monsoons, the life-giving, torrential rains of Asia and Africa, have an ancient, unsuspected connection to previous Ice Age climate cycles, according to scientists at the University of California, Santa Barbara, and at Kiel University in Germany.
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- Ancient coral reef tells the history of Kenya's soil erosion
04-10-2007 · EurekAlert!
Coral reefs, like tree rings, are natural archives of climate change. But oceanic corals also provide a faithful account of how people make use of land through history, says Stanford University scientist Robert B. Dunbar. In a recent study published in Geophysical Research Letters, Dunbar and his colleagues used coral samples from the Indian Ocean to create a 300-year record of soil erosion in Kenya.
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- Smithsonian study concludes Caribbean extinctions occurred 2M years after apparent cause
03-12-2007 · EurekAlert!
Smithsonian scientists and colleagues report a new study that may shake up the way paleontologists think about how environmental change shapes life on Earth. The researchers summarized the environmental, ecological and evolutionary consequences for Caribbean shallow-water marine communities when the Isthmus of Panama was formed. They concluded that extinctions resulting when one ocean became two were delayed by 2 million years.
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- Immediate action needed to save corals from climate change
12-13-2007 · EurekAlert!
The journal Science has published a paper today that is the most comprehensive review to date of the effects rising ocean temperatures are having on the world’s coral reefs. "The Carbon Crisis: Coral Reefs under Rapid Climate Change and Ocean Acidification," co-authored by 17 marine scientists from seven different countries, reveals that most coral reefs will not survive the drastic increases in global temperatures and atmospheric CO2 unless governments act immediately to combat current trends.
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- Arctic expeditions find giant mud waves, glacier tracks
12-12-2007 · EurekAlert!
Scientists gathering evidence of ancient ice sheets uncovered a new mystery about what's happening on the Arctic sea floor today. Sonar images revealed that, in some places, ocean currents have driven the mud along the Arctic Ocean bottom into piles, with some "mud waves" nearly 100 feet across.
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- Antarctic life hung by a thread during ice ages
02-15-2008 · EurekAlert!
A report published in the March issue of Ecology argues that the extreme cold and environmental conditions of past Ice Ages have been even more severe than seen today and changed life at the Antarctic, forcing the migration of many animals such as penguins, whales and seals. Understanding the changes of the past may help scientists to determine how the anticipated temperature increases of the future will work to further transform this continent.
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- Evidence From Ice Age That Climate Change Can Have A Rapid Effect On Ocean Circulation
10-09-2006 · ScienceDaily
Sudden shifts in temperature over Greenland and tropical rainfall patterns during the last ice age have been linked for the first time to rapid changes in the salinity of the north Atlantic Ocean. The results provide further evidence that climate change can have a direct and rapid impact on ocean circulation and chemistry.
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- Origins of life
11-17-2006 · EurekAlert!
The origin of life lies in unique ocean reefs, and Rosenstiel School scientists have developed an approach to help investigate them better. An article published in Geology this month reveals how Dr. Miriam Andres' stromatolite investigation -- the first of its kind -- has begun to "fingerprint" ancient microbial pathways, increasing the understanding of how these reef-like structures form and offering a new way to explore the origins of these living records.
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- Climate change and life in the Southern Ocean
11-27-2007 · EurekAlert!
A 10-week expedition to the Lazarev Sea and the eastern part of the Weddell Sea opens this year's Antarctic research season of the German research vessel Polarstern. Starting Nov. 28, scientists from eight nations will focus much of their work on climate-related research as part of the International Polar Year.
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- Collaboration between International Youth Foundation and Nokia shows positive changes in young lives
04-17-2007 · EurekAlert!
A 13-country Brandeis study of life skills programs run by the International Youth Foundation and Nokia demonstrates significant increases in young people's educational readiness, engagement in their communities, and their self-confidence and focus on the future. The study's results were released today during a symposium attended by international and US program and policy leaders at the Carnegie Endowment for International Peace in Washington, DC.
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