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Climate swings have brought great CO2 pulses up from the deep sea
05-11-2007 · EurekAlert!A study released provides some of the first solid evidence that warming-induced changes in ocean circulation at the end of the last Ice Age caused vast quantities of ancient carbon dioxide to belch from the deep sea into the atmosphere.
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Keywords: climate, swings, brought, great, co2, pulses, deep, sea, swing, pulse
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- AGU Journal Highlights -- May 3, 2007
05-03-2007 · EurekAlert!
In this issue: Warming oceans may diminish length of day, Seasonal variations in the seismicity of the Himalayan Mountains, Lead in old Antarctic ice, Reorientations of crystal lattice may explain deep Earth’s seismic jumps, Improved modeling of permafrost dynamics in global climate models, New model shows how layering facilitates rock deformation, Hydrothermal systems may foment periodic unrest at caldera volcanoes, Fluid pore pressures in debris flows, Arctic sea ice vanishing faster than models forecast
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- AGU Journal Highlights -- Aug. 14, 2007
08-14-2007 · EurekAlert!
Atlantic storm magnified tsunami waves, Deep Antarctic sea temperature rise, Cooling when ancient lake drained, North Atlantic warming may spur Antarctic current, Linking tsunami heights to earthquake traits, Soil moisture stirs Sahel atmosphere, Dehydrated minerals lubricate faults, Geoengineering perils, Leaf pores shift climate's carbon-dioxide sensitivity, Indian Ocean's temperature reversal, Greek coastal notches show uplift rates, Imaging down under New Zealand volcanic zone, Modeling Amazon floods, Satellite data improves vegetation models, Capillary pressure's electric connection
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- Southern Ocean could slow global warming
12-05-2006 · EurekAlert!
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- AGU journal highlights -- Aug. 1, 2007
08-01-2007 · EurekAlert!
The following articles are featured in the upcoming issue of the Geophysical Research Letters: "Surface warming and the solar cycle"; "Humans in China 1 million years ago"; "Alternative mechanism for recent Martian volcanism"; "Estimating tropical cyclone numbers in North Atlantic before satellites"; "Satellites detect deformation from Sumatra-Andaman earthquakes"; "Ocean supergyre in southern hemisphere"; "Mechanisms for major climate shifts"; "30,000-year record of sea surface temperatures"; "Aseismic creep in Mexico"; "Saturn’s plasma-depleted flux tubes"; "Soil moisture and remote sensing"; "North Atlantic climate and deep-ocean flow speed"; and "Comparing polar mesosphere summer echoes."
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- Exploration of lake hidden beneath Antarctica's ice sheet begins
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A four-man science team led by British Antarctic Survey's Dr Andy Smith has begun exploring an ancient lake hidden deep beneath Antarctica's ice sheet. The lake -- the size of Lake Windermere -- could yield vital clues to life on Earth, climate change and future sea-level rise.
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01-15-2008 · EurekAlert!
In an article published in the Jan. 16 issue of PLoS ONE, Joan B. Company and colleagues at the Institut de Ciencies del Mar in Spain describe a mechanism of interaction across ecosystems showing how a climate-driven phenomenon originated in shelf environments controls the biological processes of a deep-sea living resource.
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- Present-day species of piranha result from a marine incursion into the Amazon Basin
12-03-2007 · EurekAlert!
A research team involving IRD scientists has acquired a better understanding of the evolutionary history of piranhas. About 4 million years BP, rise in sea level appears to have brought about the isolation of small populations of piranhas in the upper reaches of the great rivers. This situation favoured speciation and hence the formation of the present species. Such populations would then have descended to colonize the lowland waters of these rivers following the regression of the Atlantic Ocean.
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- AGU Journal Highlights -- February 23, 2007
02-23-2007 · EurekAlert!
In this issue: Ground rises at Naples volcano; Unclouded water-vapor measurements; Irrigation cools atmosphere; Undersea landslide sans methane; When sea heights reveal deep pressures; Ocean mixing near Japan; Shear slip and deep earthquakes at plate interfaces; Greenhouse-gas rise may slow ocean circulation; Tidal mixing in Indonesian seas; Daily wind patterns in coastal ocean; Modeling Mt.Vesuvius' volcanic hazards; Troposphere-stratosphere mixed by typhoons/hurricanes; Summer echoes over Antarctica; Rapid Greenland-glacier shrinkage; CO2-caused ocean acidification may reduce shellfish populations.
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- AGU journal highlights - Jan. 2, 2007
01-02-2007 · EurekAlert!
In this issue: "Perturbations to the radiative energy balance following the Mt. Pinatubo eruption; Hydrographic control of the Indian Ocean by Antarctic climate;" "Modeling large vortex action at small scales;" "Seasonal changes in the age and structure of dissolved organic carbon in Siberian rivers and streams;" "South China Sea throughflow affects heat and freshwater distributions in the tropical Indian and Pacific Oceans;" "Solar and human-induced climate forcing on tropical hydrology," and "Microearthquakes and subglacial conditions."
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- Investigating coral reefs to help understand past and future climate change
05-16-2007 · EurekAlert!
Increasing Earth temperatures and rising sea levels. Both of these are effects of climate change. The current concern is that human activity is changing our climate at a rate well above the natural climate cycling. Understanding how the Earth's climate system works and responds to human impact is therefore of uttermost importance.
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